Crew or equipment visible: When Ennis tells Alma that he and Jack are going fishing, he hands Alma Jr. to her. While in her mother's arms, Junior's pajama top hikes up and you can see her microphone cord.
Continuity: Jack is chopping wood when Aguirre approaches to give news of his sick uncle. Jack places the next log on the chopping block as he turns to speak to Aguirre. After the conversation is over and Jack turns back to chopping, the log is gone and he replaces the log that was never chopped.
Anachronisms: When Cassie dances with Ennis the first time, the jukebox is playing Steve Earle's "The Devil's Right Hand". In the movie it is set in the late-'70s, but that song wasn't released until his album Copperhead Road came out in 1988. Steve Earle wrote the song in the late 70's. It was one of his earliest. There are two versions. The raw, less produced version with a young Steve Earle appears in the movie version. It was released on an album called early tracks in 1987. The studio enhanced version appeared on Copperhead Road in 1988.
Factual errors: Early in the film (1963, Wyoming) a train is seen crossing the screen without a caboose. Cabooses were required by law on all trains into the 1980s.
Continuity: During Jack's first and second bull rides, his free hand alternates several times from being his left or right hand. Since he's obviously not letting go to switch hands, either some shots are flipped or the sequence is edited from several takes.
Continuity: When Ennis and Alma are playing in the snow after sledding down the mountain, Ennis's hat is covering/not covering his ears between shots.
Anachronisms: When Ennis was driving his daughter Alma home from the bar where Alma and his waitress girlfriend have met, along the path in the background was a Dodge Neon. This can be seen through the window. Alongside the Dodge Neon was a RV or trailer car. These had not been introduced yet.
Anachronisms: When Ennis gets into a fight in front of the bar after leaving Alma's house on Thanksgiving, the "Budweiser" neon light in the window of the bar is one of the newer logos. The italic logo was introduced in the late 1990s.
Continuity: When Jack is in Mexico, the same boy (in a blue striped shirt) runs behind him twice.
Continuity: When Ennis and Jack are fighting on the hill, the day they leave, and Jack knees Ennis in the nose, he gets up to help him. He puts his hands on Ennis' shoulders, but in the next shot, his right wrist is being used to soak up the blood from Ennis' bloody nose.
Anachronisms: Leading up to the argument that sparks the Del Mar divorce, Ennis is lounging on the couch watching an episode of Kojak and Alma states that it is Saturday night. Kojak didn't air on Saturday nights until its 5th season (Fall '77 to Spring '78) and the judge reveals to us that the Del Mar divorce takes place on November 6th, 1975.
Anachronisms: Ennis gets a postcard from Jack which reads, "Ennis, see you in a couple weeks, fish should be jumping. Jack." The postmark is from Childress, Texas, dated July 1972. A couple of weeks later, Jack is driving a blue Ford truck. Ford only produced this specific truck grill in 1976 and 1977. In a following scene, Ennis and Alma's divorce is granted 6 November 1975. The blue truck should not appear in a 1972 scene.
Continuity: Supermarket scene. An end row of bottles is hit/broken. When the camera moves back, the bottles are again upright and intact.
Anachronisms: The tractor trailer rigs are too modern for the time period. At the beginning of the movie the tractor used in the film wasn't the kind rolling along the highways in the 1960s.
Continuity: The first postcard from Jack has no address. The only clue to his address is the post mark. Yet when Ennis writes back, he addresses his card to RFD 2, Childress, Texas. He would have had no way of knowing Jack's rural route number.
Continuity: Ennis, standing in the river washing a coffee pot with a rag, pauses to look up and spots Jack on horseback in the distance on a mountainside. Ennis then slings the washrag over his right shoulder and starts to exit the river. In the next scene, as he exits the river onto the riverbank, the washrag is gone from his shoulder and back to being held in his right hand.
Miscellaneous: During the hail storm scene on Brokeback Mountain, although one can hear the wind blowing very hard, the trees in the distance remain still.
Continuity: When Jack rides into camp complaining that he is "commutin' four hours a day" he takes off one glove, the one on his left hand, to feel the coffee pot. It then shows him drinking coffee with his left hand and the right hand glove is still on and he is holding the glove from the left hand with his right hand. When Ennis says (the second time) "I wouldn't mind being out there" it shows Jack with the coffee cup still in his left hand but the glove from his right hand is now off.
Anachronisms: When Jack is at the bar, turning around to eye Lureen, just before she approaches him for the first time, soft contact lens are visible in his eyes.
Continuity: At the beginning of the movie where we first see Jack Twist driving up in his truck, the window on the passenger side is up as evidenced by the reflections off the glass. Then as the truck turns into the parking lot, the same window is now down.
Factual errors: The first reunion of Jack and Ennis is on 24th September 1967. On the next day 25th, they went onto the mountains and at that night there was a full moon. However, the full moon of September 1967 should be at 18th day, not 24th or 25th.
Audio/visual unsynchronized: When Jack rides the bull (at the same rodeo where he meets Lureen), he is thrown to the ground before the eight-second buzzer sounds. Had this been real life, he would receive a no-score.
Continuity: Towards the end of the movie when Alma Jr. visits her dad in his trailer, he goes to the cupboard to get them a drink and cups. The cupboard door at Ennis' head is seen alternately opened and closed without him touching it.
Crew or equipment visible: When they are being viewed from a far as they play with their shirts off, on the far left there is filming equipment visible within the trees.
Anachronisms: The type of fireworks display in the 4th of July scene was unheard of in the United States during the 1960s. At that time, almost all fireworks used in the U.S. were made in the U.S., and were generally fired one at a time. Chinese-made fireworks did not become prevalent in the United States until after trade relations were opened up with China in 1972. The low-level Chinese-style fireworks shown in the film were not imported into the United States during the 1960s and did not become popular in fireworks displays in the U.S. until the 1990s at the earliest.
Anachronisms: In an early scene on the mountain, Jack is shown smoking an American Spirit cigarette while looking at the moon (you can tell by the design on the side of the cigarette). This product is made by a company founded in 1982, but the scene is supposed to take place in 1963.
Continuity: Alma Jr. in scenes, when she is around 4 has blue eyes, when she is 19 - they turned brown.
Anachronisms: During the scene in the supermarket (where Alma works), plastic cranberry juice bottles with yellow, plastic twist lids on a shelf are visible behind Ennis' head. The scene takes place in the mid-1960's and glass juice bottles were used until the early 1990's.
Continuity: When Ennis comes back to camp late at night after he encounters the bear, Jack asks him where he's been. It's supposed to be cold but when Jack talks you can't see his breath. When Ennis tells his story about the bear, you can see his breath, but when they continue talking, neither one's breath can be seen in the cold night air.
Continuity: In the scene when Jack tells Ennis "you have no idea how bad it gets", Jack's gloves switch from his right hand to his left hand.
Continuity: When Aguirre comes to tell Jack about his sick uncle, Jack has the ax in his right hand. When the conversation is over and Aguirre rides away, the ax is in Jack's left hand.
Anachronisms: In the very beginning of the movie, a freight train passes by in front of Ennis. The train does not have a caboose. Freight trains did not begin operating without cabooses until the 1980s.
Revealing mistakes: During the rather important kitchen sink conversations after the family holiday dinner, a props tag is plainly visible on a dish's underside. As the dish is conspicuously hand-washed under running water, the underside faces the camera and the large masking tape tag with marker lettering goes unacknowledged by the cast.
Continuity: In the scene where Jack Twist is first introduced to Alma by Ennis, her purse is on her left shoulder and her arms are down - immediately in the next scene when she is shown, her arms are folded across her chest in a "defensive" stance.
Continuity: When imitating a rodeo ride at the camp, Jack is holding a bottle in his left hand and has his hat on. In the next shot he is holding the hat in his left hand.
Crew or equipment visible: (At 01:45:00) During their argument at the fishing place, you can clearly see the camera setup that has been left on one of the cars.
Continuity: When Jack arrives at Aguirre's trailer his pickup is parked nose in, but when he and Ennis are back from the mountain and Ennis is helping him get his truck started, it is facing nose out.