Continuity mistake: Near the end of the movie when the 'false' Buzz Light Year is running along the air conditioning ducts his 'New Utility Belt' disappears then reappears again. (01:01:55)
Continuity mistake: When the Iron Giant follows Hogarth home they cross a railwayline and the Giant starts to eat the steel rail. During this scene you can see the distance of the railway sleepers changing from a fair distance apart to close together over the course of the shots. In the same scene you can also see that, although there is a crossing with lights, no vehicle could possibly pass as the rail has no crossover facility at that level. (00:24:30)
Continuity mistake: During the "La Resistance" number, during the verse, "They may stab you in the head, with a dagger or sword," We see a guy wearing blue with a blue hat on the left (probably Craig). In the next shot, he disappears, and in the next shot, he reappears. (00:50:05)
Continuity mistake: After Tarzan fights the leopard, and at the point when the gorillas and him run off, the dead leopard is missing.
Continuity mistake: When singing the song about what they would do if the monster came to their room in the night, Simon puts on Alvin's duvet/blanket as a cape. It then shows an imagination sequence where the blanket is a correctly sized cape to fit him. When it returns to the real world, the 'cape' is the size of his imaginary cape, nowhere near the size of the bed.
Continuity mistake: When they go to the famous writer's hometown, the mayor is taller than the writer then later he is shorter than him.
Continuity mistake: When Ash prepares to send out Bulbasaur, the front of his hat goes from being aligned to the left of the visor to being past it. (00:06:15)
Continuity mistake: In "Rhapsody in Blue" When we first see the drumming construction worker in his room, his alarm clock is standing up straight, but when the closeup happens, the clock is face flat on the table. (00:17:45)