- Revealing mistakes: A group of F-16 fighters flying in formation are seen banking off to begin engaging the Decepticons. Inexplicably they each launch flares - a kind if decoy for heat-seeking missiles - as they break formation. (This is likely because it's library footage of F-16s on maneuvers.)
- Crew or equipment visible: Low angle camera rigging shadow cast on Bumblebee on the far right of the frame when he driving along at sunset in processions with the other Autobots.
- Revealing mistakes: Near the start of the film the Union Jack can be seen flying upside down, which is actually a distress signal.
- Continuity: When Sam Witwicky drops his papers on the college steps three people on the right hand side are walking behind him. As the shot changes the three people are further back just getting to the steps.
- Errors in geography: When Jetfire is reactivated at the Steven F. Udvar-Hazy Center in Virginia, he blasts open a hangar door and steps outside, the exterior shot showing him and the other protagonists being in the "bone yard" at Davis-Monthan Air Force Base in Arizona - the opposite end of the country.
- Errors in geography: The entire scene involving Egypt, Jordan and the Bay of Akkaba is a geographic mess. Petra is almost 1000km from the pyramids which lie just outside Cairo. Also, Cairo is nowhere near a sea-shore but is a few hundreds of kilometers inland from the Mediterranean.
- Continuity: During the frat party scene where Sam gets a green drink, the drink is full in one shot, nearly empty in the next, and full again in the third.
- Continuity: After Devastator has ripped off the top of the pyramid, Agent Simmons (John Turturro)is seen giving coordinates to a US Navy aircraft carrier. Agent Simmons is meant to be on the same pyramid, but you can clearly see in the background the same pyramid without any damage.
- Errors in geography: In a couple scenes in the movie, it mentions the USAF characters are at a military base in New Jersey. But each time the scene switches to this "New Jersey", you can see a desert-like environment and mountains in the distance; both of which New Jersey does not contain.
- Factual errors: In the scene where the Decepticons attack Paris, red and blue sirens are seen through the streets. Sirens on Parisian police cars are just blue.
- Revealing mistakes: Very loud Decepticon meteorites are crashing down and exploding by the pyramids in the distance, but the guy with the camels in the foreground show no reaction.
- Factual errors: After Starscream deploys the EMP and the soldiers lose communication, MQ-1 Predators are ordered to be launched. The airframe shown taking off is the MQ-9 Reaper, not a Predator.
- Factual errors: In an overhead scene of the Pentagon, the location is cited incorrectly as "The Pentagon - Washington D.C." The Pentagon is located in Arlington, VA.
- Continuity: When The Fallen climbs the pyramid, the tip of it is destroyed but in another scene it appears to be complete.
- Revealing mistakes: The rank of the short Egyptian soldier that was in the checkpoint was shown to be a very high rank which in the Egyptian army only five men hold - the army heads.
- Revealing mistakes: Only one Pyramid in Giza has a smooth top, namely the Pyramid of Khafre. The machine to harvest Energon is hidden in that pyramid and the whole fight takes place there. You can see the smooth top when Devastator is climbing the Pyramid. However, every actual shot is taken on the Pyramid of Khufu. For example, when agent Simmons is climbing the Khufu Pyramid, the actual Pyramid he should be climbing (Pyramid of Khafre) is visible in the back. This mistake is visible many times during the last fight scene.
- Revealing mistakes: When the F-16s are flying to fight the Decepticons, none of them are armed with live weapons.
- Factual errors: Tyrese Gibson's character is listed as Master Sergeant Epps, a grade of E-7. However, his rank stripes on his uniform are of a Chief Master Sergeant, a grade of E-9.
- Revealing mistakes: When the medical helicopter flies in during the end battle you can see "White Sands Missile Range" written on the side of the door. The battle was supposed to be in Egypt and a WSMR helicopter would not be there. In addition to this, the aircraft was painted Red/White/Blue. The medic was wearing US Army ACU body armor implying that he was on a "tactical" aircraft. The color scheme should have been olive green,and most likely, a BlackHawk vs. the Huey depicted.
- Factual errors: Major Lennox is wearing a flag patch with the stars on the left side on his right shoulder. Army (as well as the other services) regs state that the stars should be forward.
- Continuity: When Galloway declares that NEST is being disbanded, he literally strips Major Lennox of his rank insignia. In the next scene, Lennox is wearing the oak leaf cluster again.
- Revealing mistakes: When the team is jumping out of their aircraft into what should be the desolate Egyptian desert, a full modern two runway airstrip can be seen as they exit the rear of the aircraft.
- Continuity: In the forest battle, you can see that Shia LaBeouf has the brace on his left hand due to his car crash in July 2008. Sam doesn't get his hand burned until later on in the movie when Jetfire opens up the space bridge.
- Crew or equipment visible: As the car dropped into the warehouse tips forward and lands on its roof, the camera mounted to the right side of the car (to capture the shot of the airbags inflating) is briefly visible.
- Continuity: Before the Decepticons sink the aircraft carrier, it shows two F-14 Tomcats on the stern of the ship (which are no longer in the active Navy inventory). In all other shots of the carrier (sinking or not), there are no F-14s present.
- Errors in geography: An establishing shot shows Manhattan, then immediately following that shows two Transformers on top of a building in what is clearly Downtown Los Angeles, with landmarks such as Aon Center and US Bank Tower clearly visible.
- Factual errors: In the areal shot of the USS Theodore Roosevelt, you see on deck a number of F-14D Tomcats. The United States Navy no longer has any active squadrons of Tomcats, the last of which was retired on Sept 22, 2006. When the carrier is sinking, no Tomcats appear. This is likely due to old file footage being used for the initial shot, and CGI for the sinking.
- Continuity: When they leave America, it is the middle of the day. They arrive in Egypt at the same time as they left, yet it is the middle of the day there too. It should actually be dark and in the evening when they arrive- Egypt is 8 hours ahead of America.
- Crew or equipment visible: After the big battle when Sam and Mikaela are together and Sam is rubbing Mikaela's back you can clearly see her mic pack under her shirt.
- Factual errors: In the scene where the USS Topeka (SSN-754) is operating on the surface, the footage shown is of an early flight I Los Angeles Class submarine. The Topeka is a 688I class, and as such doesn't have diving planes on its sail, but instead has them on the bow.
- Incorrectly regarded as goofs: When the Decepticons start to surround Agent Simmons and Leo in the quarry, drivers can be seen through the windscreens of the trucks. These drivers are holo-images generated by the Decepticons so they won't look like vehicles driving themselves.
- Factual errors: Near the end of the film, when the U.S. military brings reinforcements, several armored vehicles arrive, including an M2/M3 Bradley Fighting Vehicle, which is exclusively used by the U.S. Army. The only possibly way it would have arrived would be by Marine Corps LCAC hovercraft. There is no logical explanation as to why the USMC would have brought along Army Bradleys as part of their amphibious strike force, especially since the Marines have their own armored personnel carrier, the LAV-25.
- Errors in geography: When Megatron and Starscream communicate after Sam has escaped they are supposed to be in New York City; however, the two Decepticons are seen on top of the "Gas Company Tower" in Los Angeles, California.
- Crew or equipment visible: When Optimus Prime and Sam are having their discussion in the cemetery, green mark tape directing Shia LaBeouf where to stand is clearly visible on the grass immediately in front of him.
- Incorrectly regarded as goofs: According to the creators of the film, the Constructicons exist not as individuals, but as a legion of robots who each have one of seven body types. This is why Long Haul (Green Dump Truck), Rampage (Bulldozer), Scrapper (Yellow Scoop Loader) and Mixmaster (Cement Mixer) are fighting Bumblebee's group, while also seemingly being part of Devastator at the same time.
- Incorrectly regarded as goofs: During the scene when SoundWave orders the Decipticons to mobilize, there is a shot in which two robots, whom appear to be BoneCrusher and the tank version of Brawl from the first movie, are shown. Both of these characters were supposedly killed in the first movie, however similar to the Constructicons, these may be Decepticons that have selected similar Alternate modes.
- Continuity: When Bumblebee is in car form the Chevrolet bow tie is black with red trim, but when he is in robot form the bow tie is gold.
- Revealing mistakes: In the beginning of the movie when Mikaela is leaning on a motorcycle to airbrush it, she is using a gravity feed airbrush. These have small containers on the side for the paint that is open topped and must be held straight up and down as not to spill the paint. She is holding the airbrush sideways, and there is no paint in the holder or coming out of the airbrush.
- Errors made by characters (possibly deliberate errors by the filmmakers): When Sam meets Leo's friends, they refer to the climatic battle of the previous film as happening in Los Angeles, although in that movie it was supposed to be taking place in the fictional Mission City.
- Incorrectly regarded as goofs: While flying over the desert, you can see a pilot inside Starscream. In previous shots (the 3 riders on the motorcycles) and in the previous movie, transformers often use "digital pilots" to enhance their disguise. Although the digital pilot would not really work since Starscream has a bunch of tattoos in this movie, it could just be a "default" setting to display the pilot when in jet mode.
- Factual errors: The cargo planes are marked AETC on the tail. AETC is "Air Education Training Command", which is only used for training pilots. Once a pilot is trained on a cargo plane, they would fly for AMC, "Air Mobility Command".
- Plot holes: When the 5 robots form into Devastator none of the 5 robots is a Wrecking Machine, yet the robot has two wrecking balls as its scrotum.
- Continuity: When we see Mikaela for the first time (on the motorcycle, painting a devil on the side), she is lying forward on the bike, leaning over the right side. When the shot changes, she is leaning over the left side of the bike.
- Errors in geography: In the movie, the military frequently discusses the Gulf of Aqaba and how it is bordered by Egypt and Jordan; however, they fail to note that Israel is located between Egypt and Jordan, bordering the gulf.
- Continuity: When Mikaela is putting the bandage on Sam's hand, the wind shot shows her crouching and then getting up. The next shot she is crouching again.
- Continuity: During the Decepticon attack/landing and following destruction of the USS Roosevelt, EA-6B Prowlers ( looks like an A-6, except for the "football" on the tail ) can clearly be seen forward of the bridge ( their traditional parking place on the flight deck ). While the ship is sinking, the Prowlers are nowhere to be found and have been replaced by SH-60s which are sliding down the flight deck.
- Continuity: During the scene of Sam running into the car to escape the college girl who turns into a robot - as she sticks her 'metal tongue' through the windshield, the window on Sam's side smashes and leaves a jagged edge. Yet in the next shot of him in the car, the window is fixed (a new whole window). As they drive away, the window has been cut away cleanly - leaving no jagged edges.
- Crew or equipment visible: In the beginning, when Mikaela is trying to force Sam to say he loves her, you can see the shadow of a camera on Sam's back.
- Continuity: In the climactic battle in the desert, we see Sam, Mikkeala, Lennox and Epps run from the building area as the bombs are exploding, alongside Ironhide emerges from the smoke and his left arm cannon clearly falls off as he runs, leaving it behind in the explosion. However, when the Fallen arrives and knocks all the Autobots over taking the Matrix of leadership off Optimus Prime we can clearly see Ironhide has both arm cannons intact, and is also present when Ironhide is getting back on his feet moments later.
- Errors in geography: During one of the battle scenes that's supposed to be in Egypt, you can clearly see some of the buildings from what appears to be part of LA in the upper left corner.
- Continuity: When Megatron is coming up the Captain calls for hard left rudder, when in fact the sub's rudder is turning right.
- Continuity: When Mikaela deliberately hits the white car on the pole while escaping from college, the pole dents the car in the center. But in the next shot the car is damaged on one side near the headlight.
- Revealing mistakes: When Devestator is sucking in all of his surroundings into his machine mouth he sucks in the large truck that is shielding Leo and Agent Simmons yet does not suck in the much lighter human beings.
- Incorrectly regarded as goofs: During the last fight scene BoneCrusher (who died in the first one) is seen driving forward after the Decepticons land in Egypt, he is then seen later with another Decepticon killing 2 of the Arcee Triplets. Several "doubles" of Decepticons appear in this movie, who are explained as characters with the same "body type" as other Decepticons.
- Incorrectly regarded as goofs: According to the Secretary of Defense in the first movie there were no survivors from the base attack in Quatar. In this movie Glenn Morshower (SOCCENT Colonel Sharp) returns and is now General Morshower. As indicated by the different name, this is an entirely different character from the one who died in Quatar, so it's perfectly understandable that he is alive.
- Incorrectly regarded as goofs: NEST is actually part of the US Department of Energy rather than Defense, as the acronym stands for "Nuclear Emergency Support Team." However it's entirely possible for two groups in two different agencies to share an acronym, especially if one of them is secret. Given that the Transformers are radioactive, making the public confuse their unit with the Nuclear Emergency Support Team would work to their advantage in keeping them secret.
- Errors made by characters (possibly deliberate errors by the filmmakers): In the scene where Sam and Mikaela are running from the Decepticon, as they jump into the car, Sam shouts "go Megan go" instead of Mikaela.
- Revealing mistakes: During the scene where Bumblebee and the Twins are driving through the desert, there is the same shot of an explosion to the left of them as they drive round a corner used twice within the same minute
- Incorrectly regarded as goofs: Near the end of the movie when Sam and Mikaela are running towards Prime, on the last Airstrike, when they drop the large bomb, at least one viewer thinks an explosion/reflection can be seen over Mikaela but not Sam, a compositing error. This is not possible - this shot was a "practical effect" in which the explosion was actually set off behind the actors, and according to the cast it set the world record for the largest special effects explosion performed with actors on set.
- Continuity: When Sam is kissing Alice on the bed there's a fan in the window, but when Mikaela comes back into the room and throws the box with Wheelie in it at Alice the window is closed and the fan is leaning against the wall.
- Continuity: When Bumble Bee is in robot form towards the end of the movie, you can clearly see that the Chevrolet emblem in the middle of his chest is not the same as the one when he is in car from. It goes from black with a red outline (car) to solid gold (robot).
- Continuity: When Mikaela is running into the library, you can clearly see that she is wearing high-heeled shoes, yet when she is jumping down from the upper level of the library, she is wearing black flats.
- Revealing mistakes: The film begins at 22:14 hours in Shanghai, while it is still slightly light outside, especially at the horizon. At 22:14 in the summer, the sun would already have gone down, however there would still be some light in the sky, especially if there was a full moon. ("Zulu Time" is not an acceptable explanation because Shanghai would be eight or nine hours ahead of Zulu Time, in which case the events of the movie would be after dawn and occur in broad daylight, which is obviously not the case.)
- Revealing mistakes: The British flag seen in front of the NEST base is upside down.
- Continuity: In the scene where Bumblebee and the other two Chevy hatchback Autobots are driving through the desert and come under Decepticon attack before the big battle at the pyramids, the same shot of Decepticon-fired shells hitting the sand around the vehicles and the vehicles swerving to avoid these strikes is used twice.
- Errors in geography: A Union Pacific and a Missouri Pacific lettered coal hopper on the Port of Shang-hai China rail line in the beginning of the movie. These two railcars would not be in China.
- Revealing mistakes: In Shanghai, China, the characters used on police vehicles and helicopters are in Traditional Chinese, while they should really be in Simplified Chinese.
- Crew or equipment visible: During Sam and Mikaela's first phone conversation, you can clearly see a large Fresnel light on a stand in Sam's room.
- Errors in geography: The island of Diego Garcia is an atoll in the shape of a horseshoe with no mountains that were seen in the background of one of the first shots. The highest elevation is 9 feet.
- Incorrectly regarded as goofs: When the Transformers are in robot form, their paint jobs are chipped, scratched and weathered. When they are vehicles, the same paint is super-glossy and waxed with no blemishes. However, it could be possible that they use the same hologram system that they use to create fake drivers.
- Errors in geography: The border crossing scene from Egypt to Jordan is impossible. Egypt and Jordan do not share a common border. To get from Egypt to Jordan by land, you must first cross through Israel.
- Continuity: During the scene where the protagonists finally catch up to Jetfire. When the Autobots drive up to them, if you watch closely, the tire marks in the grass were already there.
- Incorrectly regarded as goofs: At the end of the first film the robot that hacks into Air Force One is killed by his own weapon cutting his head in half but in this sequel in the freezer in Simmon's secret room the head is under a glass case and is fully intact. However, it's possible that Simmons repaired the head to at least turn it into a worthy looking trophy.
- Revealing mistakes: During the pyramid fight scene Agent Simmons calls for a fire mission from the USS Kidd. The vessel the show answering the fire mission is DDG 88 (USS Preble) not DDG 100 (USS Kidd).
- Revealing mistakes: During the apparent emergency in the C-17 when Major Lennox puts the parachute on Galloway and explains how to open the chute, he calls it a MC-4 - the military version of the ram-air square parachute. When Galloway pulls the ripcord, a round parachute is seen opening from the ramp of the aircraft (MC-1 - round parachute).
- Revealing mistakes: During the F-16 air strike, several of the F-16's are Thunderbirds; painted red, white, and blue. These are used for air shows, not combat. The aircraft used in combat use a plain gray paint job.
- Incorrectly regarded as goofs: None of the Transformers transform in the same manner twice, or transform in the same manner as they did in the first movie. ILM deliberately animated the transformations uniquely so that the movements could follow smoothly from the character's actions, such as Bumblebee emerging from the garage at the start of the movie. It can be taken for granted that these Transformers, unlike those in the cartoon, can vary their transformation.
- Continuity: After Starscream uses the EMP and the predator drone is called in, the first shot shows the drone with a propeller on the back, the next time it is shown it is driven by a jet engine.
- Revealing mistakes: The shot when Soundwave acknowledges Wheelie's observations is the exact same shot of Soundwave ordering the Decepticons to invade earth.
- Continuity: When Soundwave orders the Decepticons to invade earth, he is orbiting in space. In the next shot, he is attached to an earth satellite even though he was already attached to it earlier.
- Continuity: Sam's mother's brown roots are coming through at the start of the film as she's had her hair dyed blonde, but in the next scene at college her hair is an auburn/brown color.
- Continuity: Mikaela and Sam are running through the desert. They are being shot at; explosions going off around them; they jump and fall off buildings that explodes and collapses around them and when everything is over, Sam's clothes are in rags and pieces and he is burned, scarred and bloody. Meanwhile Mikaela, who has gone through the same ordeal as Sam, looks like she's just left the make-up chair.
- Continuity: During the final scenes in the desert, Mikaela's bracelets often switch between her left and right hands.
- Continuity: In the scene where Sam, Mikaela, Leo and Bumblebee with two other autobots are hiding out in the old brick building, as the humans are running out to leave you see Bumblebee drive around the building with them already in the car. The next scene they run out of the building and jump into Bumblebee and drive off.
- Continuity: As the B-1 bomber approaches its wings are forward. The next time you see it, the wings are swept back. As it leaves after dropping its bomb the wings are forward again.
- Crew or equipment visible: In the scene where Sam, Mikaela, and Leo are in the courtyard with Skids, Mudflap, and Bumblebee and the decision is made to continue on instead of going to the authorities, Bumblebee is in robot form and transforms into the Camaro and nudges Sam by rolling forward a short distance and then reverses. While Bumblebee is backing up, a driver wearing a balaclava can be seen.
- Revealing mistakes: When the sliver of the Cube turns all the kitchen appliances into Decepticons including a Cisco router, the router is seen in its original state after the battle.
- Continuity: During the Shanghai Chase Scene Sideways is depicted as running through a building and transforming on the other side. But if you look closely you can see that the wall that he was approaching in the former shot, and the wall he is leaving behind are the same wall and it is the same street. He did not go through the building, he made a huge explosive U-turn.
- Continuity: (At 46:40) When Sam is talking on cell phone outside on campus, going down stone steps, a girl in flowery shirt and cut-off jean skirt passes him as he's picking up papers. He continually talks as the camera changes angles, and the same girl is yet again walking by him, even though she was 8 feet past him 1/5th of a second before.
- Continuity: In the scene where Sam, Mikaela, and Leo enter the deli to meet "Robo Warrior" the time on the Neon clock in the background changes dramatically almost every time they change shots.
- Revealing mistakes: The language they are speaking in the roadblock in Egypt is not Arabic. It is gibberish.
- Continuity: (At 38:00) When Optimus is asking Sam for help, he is by the tomb of a person named Mary Louisa Baldwin (shown in detail without a particular reason and surrounded by several tombs of apparent family members). In a later shot he is standing by a different tomb, with the name Charles Francis Gummey.
- Incorrectly regarded as goofs: When Soundwave orders the Decepticons to mobilize, a shot of 4 robots flying to earth is the exact same shot of the Autobots coming to earth from Transformers (2007). Although it is the same shot, more falling protoforms have been added in the background to give the impression of mass invasion.
- Miscellaneous: When the Autobots are in the hangar, and Optimus Prime is doing his report to the general, he is interrupted by director Galloway (at 22:28-22:35) and talk about the weaponry of the Autobots. The scene is used twice - you can see it again at the end of the conversation (at 24:27-24:35) when he asks if the Autobots would leave the planet peacefully.
- Crew or equipment visible: When Sam suggests he turn himself in and Bumblebee gives him a nudge you can clearly see a crew member in the driver seat instead of Bumblebee moving on his own
- Continuity: In the scene where the car is picked up by the helicopter, the shot shows a CH-53D coming into a hover. After the car is picked up and Sam is almost thrown out, the next shot shows a CH-53E carrying the car. (The difference between the two is another engine, another rotor blade, the E is slightly longer and has a tail rotor pylon that is canted 20 degrees and a bent horizontal stabilizer, etc.) Just before it is dropped into the building, the car is again suspended below a CH-53D. In the previous film, Blackhawk was a MH-53J Pave Low III. The helicopter in question is a CH-53D with a FLIR ball only. It's a guess as to what or who was attacking Optimus in the forest fight.
- Continuity: In the opening scene when the Fallen steps on some primitive warriors, he clearly does so with his right leg. Then in the very next cut as he lifts his foot, it somehow becomes his left leg.
- Incorrectly regarded as goofs: When they go to meet Agent Simmons in New York City, there is a shot of the Brooklyn Bridge with the American flag on the eastern tower of the bridge. Although, earlier in the film, the Constructicon Mixmaster knocked the flag off the tower who is to say that the flag had not been replaced. As patriotic as Americans are they may have had it quickly replaced as a sign of strength.
- Incorrectly regarded as goofs: Sam was lying on ground after explosion and has swollen jaw and burn on left cheek. When he stands up to hug Mikaela he has no burns on cheek and his jaw is no longer swollen. This is no doubt caused by the power of the Matrix of Leadership bringing him back to life.
- Incorrectly regarded as goofs: During the scenes in the desert, some have claimed that Mikaela's white jeans stay perfectly white. However, it is obvious that they become dirty as the battle progresses though maybe not as fast as some may think they should. This is obvious in the seen when Sam is injured - her jeans are dirty. It also should be noted that the sand is white too.
- Incorrectly regarded as goofs: When the pyramid eating robot is throwing rubble on the Sphinx, in the foreground, there are pigeons on the nose of the sphinx. This is not a mistake as that is actual footage of the sphinx as noted in the director's commentary.
- Incorrectly regarded as goofs: The Air Force character Epps was a Technical Sergeant in the first movie and is a Chief Master Sergeant in the "Revenge of the Fallen" which takes place two years later. It is plausible that he was able to make rank that quickly as he did help to save the world from the invading Decepticons in the first Transformers movie.
- Incorrectly regarded as goofs: When Sam's mom eats the cannabis brownie she gets high in what seems like 5 or 10 minutes. The director's commentary and deleted scenes reveal that more time has elapsed than that but is not shown on screen in order to move the story forward.
- Incorrectly regarded as goofs: When Skids and Mudflap enter the military hangar to upgrade from the ice cream truck, they get to choose between becoming a Chevy Beat and a Chevy Trax. Skids chooses the Chevy Beat, which already has his name on the license plate. However, given the lower intelligence of these two robots the military may have already had their names on the plates in order to avoid the fight the happened anyway (the fight of who was going to be what car).
- Incorrectly regarded as goofs: When Sam & Mikaela are driving away from the college with the robot-girl on the hood, Mikaela slams the car into a pole and drives away. The airbags do not deploy. Given that the car actually did crash into the pole (as shown in the behind the scenes footage on the DVD) it shows that air bags do not deploy 100% of the time as statistics show. Moments later, Megatron drops the car into a warehouse and then the airbags work, no doubt because the impact was much greater.
- Errors in geography: During the scene where Sam and Mikela are picked up in their car by a H-53, the location of the shot changes. At first they are on the East Coast, but in a wide shot San Diego can be clearly seen in the background, including the Coronado Bay Bridge and the USS Midway.
- Revealing mistakes: When Starscream begins his attack on Sam and the Autobots in Egypt by firing missiles, the actual plane in the scene is dropping flares.
- Factual errors: Towards the end of the movie the incoming bombers are stated to be equipped with "2,000 lb JDAMs". JDAM is a bomb guidance system which is attached to a bomb, not a bomb in itself.
- Continuity: Megatron says "No more hiding" referring to the Decepticons no longer camouflaging themselves or imitating other objects, but some Decepticons still imitated Earth vehicles and aircraft, such as the Devastator bots, which were even motionless when they were being stood next to and in hearing distance of humans babbling loudly. One of the Decepticon jets was also shown with a pilot inside, which seems to go against the "No more pretending" line.
- Continuity: At the end of the movie a camera first flies over Sam and Optimus standing at the bow of an aircraft carrier, which has 71, the USS Theodore Roosevelt, painted on the deck. However, a few shots later with the camera coming up behind them and then another fly over shot, the deck is now painted with the number 74, the USS John C. Stennis.
- Incorrectly regarded as goofs: General Morshower is shown as a Marine Corps 4 Star General, however the Marine Corps only has one 4 Star General and that is the Commandant of the Marine Corps. However, Morshowser is also noted as being the Chairman of the Joint Chiefs of Staff, and the Commandant of the Marine Corps IS one of the Joint Chiefs.
- Factual errors: Orion is only visible from late October through mid-March.
>>> WARNING: Here Be Spoilers <<<
Goofs below here contain information that may give away important plot points. You may not want to read any further if you've not already seen this title.
- Factual errors: SPOILER: When the Decepticons were recovering the remains of Megatron, General Morshower states that there were objects approaching the depth of 9000 fathoms to Megatron's location in the North Atlantic ocean. 9000 fathoms is a little over 10 miles in depth and there is no known location in the world with that depth. The deepest point being the Mariana Trench in the Pacific Ocean, near 6,000 fathoms, and the Puerto Rico Trench in the Atlantic Ocean measuring approximately 4,700 fathoms.
- Continuity: SPOILER: The hull number on the carrier that the Decepticons sink changes from 74 (making it the USS John Stennis, the ship Simmons radios for the railgun fire mission) to 72 (making it the USS Abraham Lincoln) and then back to 74. News reporters later identify it as the USS Theodore Roosevelt, whose hull number is 71.
- Revealing mistakes: SPOILER: When Sam is supposed to be dead, and the medics kneel down beside him to hit him with the paddles, you see Shia LaBeouf's face and head move as one of the medics accidentally bumps him.
- Incorrectly regarded as goofs: SPOILER: One of the reasons for sending Megatron down into the deep ocean was that it was cold to keep him frozen. According to the Prequel Comic, Megatron was frozen on Earth due to a lack of Energon. Whereas, the drop team that revives him was more than likely fully-energized and capable of resisting the cold and depth of the ocean.
- Incorrectly regarded as goofs: SPOILER: Only a prime can kill a prime thus Optimus must be revived to kill the Fallen. However, Megatron easily killed Optimus, yet he himself is not a prime. However, as stated in the first movie, Optimus and Megatron are actually brothers, and therefore both descendants of the Prime legacy.
- Incorrectly regarded as goofs: SPOILER: Soundwave announces that Optimus Prime is dead before he actually dies. This is because he's in contact with Megatron and Megatron has stopped his attack, something he'd only do after knowing Prime was going to die. Thus although Prime wasn't physically dead, there was no doubt he was finished.
- Plot holes: SPOILER: The "three kings" stars of Orion's belt were supposed to mark the location of the hidden tomb of the Primes, as seen at sunrise from the Dagger's Tip. But stars are at a slightly different point in the sky at sunrise each day, so they could not accurately point the way to the tomb at sunrise except on one day each year. No date was specified in the clue.
- Continuity: SPOILER: When the Decepticons go under water to revive Megatron, the navy states that 5 "objects" go under water. If one of the Decepticons was killed in order to bring Megatron back to life, there couldn't have arisen 6 "objects" from the water: Ravage spits out the Doctor Robot (5+1=6), one gets stripped into parts (6-1=5), Megatron gets reactivated (5+1=6), and Ravage swallows the Doctor to head back to the surface (6-1=5).
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