Continuity: During Tai-Lung's escape scene, he tosses 4 spears into the air. When he jumps up he only kicks 3 spears, but 4 are shown crashing into the prison wall.
Continuity: After Po accidentally breaks the Urn of Whispering Warriors, the pieces move around on the floor.
Continuity: Po gets all dirty when when he finally lands in the arena, but after he is selected as the Dragon Warrior, he is clean again.
Continuity: When Master Shifu throws two clay discs into the air for Master Tigress to demonstrate the proper use of a split kick, you can see more on the ground. The aerial view is missing the other discs.
Continuity: When Po wakes up in the beginning of the movie a throwing star falls down and lands on the floor. Later when he tries to throw it back up on the wall you see the original throwing star is still in the wall.
Continuity: When Po tries to use the bamboo to vault into the ceremony he makes a big crack in the wall - however this disappears right away as it is never to be seen again.
Miscellaneous: The peach tree is seen to be covered with blossoms and fruit at the same time. Typically, fruit trees blossom in the spring, then they are covered with leaves in the summer, and finally they yield fruit in the fall. This cycle is longer or shorter with different fruit trees in different climates, but it is always sequential and never simultaneous.
Continuity: When Master Shifu and Po are talking privately for the first time, Master Shifu does the Wooshy Finger Hold and grabs his middle finger. Then in the next shot, you see Master Shifu holding Po's pointer finger and in the next shot his middle finger again.