Revealing mistake: When Sparky's tail pops off there is a hole where it popped off. But when the tail goes into the bucket the hole is gone.
Revealing mistake: When Lois looks in the driver seat of the bus, there is a mechanical doll there that turns its face towards her and holds up a kitchen knife. The doll has a missing eye, and this is shown in the reflection on the knife. But the crack that is under the hole where the eye is missing is not fully reflected. (00:36:20)
Revealing mistake: As Lawrence III walks up the stairs to his console, he clips through them in the process. (00:01:43)
Revealing mistake: When Spencer is walking over to the computer, he clips through the rocking horse. (00:01:39)
Revealing mistake: When Alice tells the Mad Hatter how she appeared in Wonderland the hare's paw is superimposed on the teapot's handle as if the pot were flat or he was floating.
Revealing mistake: As Lulu is pulling her fishing pole out of the school steps, you see if you watch closely that the pole actually passes through the concrete of the steps rather than her lifting it over. (00:02:00)
Revealing mistake: When Jerry and Tom are tripping Mr. Bigley into the trashcan, neither them nor Mr. Bigley cast a shadow. But Bigley did in the previous shot, where Tom and Jerry did not. (00:52:20)
Revealing mistake: In the scene where Luigi offers his service to Van and Minny, Guido is juggling wheels. But when Guido finishes, you can see over his right lift that his one of his wheels is not rendered correctly, as it seems to overstep his bodywork.
Revealing mistake: As the gang is watching The Phantom on the security monitors, he turns around and takes off down a hall. The only lights in the hallway are suspended from the ceiling in the center. Yet the Phantom's shadow is cast to his right on the wall, when there are no lights to his left. (00:10:50)
Revealing mistake: Numerous times in the film the animals walk from shade into sunlight without their eyes reacting.
Revealing mistake: Barry is handed a file at his work. He starts reading it but the paper is totally blank. (00:12:35)
Revealing mistake: Cottontail gives Tom a wet Willie. However Tom reacts before Cottontail touches him.
Revealing mistake: When Sheila asks if Terrance and Phillip have any last words, Phillip says, "Last words, how's about get me the f**k out of this chair!" When he does, his arm leaves the arm of the chair and goes through the restraint, which reappears instantly after. (01:03:00)
Revealing mistake: Susan appears to pass right through the glass window after knocking down Gallaxhar.
Revealing mistake: Right after McQueen asks what the Ghostlight is, it cuts back to the other cars. Luigi is right next to the firetruck and some gas pumps. The firetruck's door is very reflective, and the gas pumps are visible in it. But Luigi is right by the pump, and he is not reflected in the firetruck's door. (00:02:10)
Revealing mistake: During the scene when Scrooge is sitting in his armchair by the fire, the animation of the fire is badly looped and you can see it flickering as it finishes a cycle.
Revealing mistake: When Stella the skunk yells at the cat, she pokes him on the face. However, you will notice that the hand looks a lot like a human hand, not Stella's.
Revealing mistake: When Mater and Holley are talking in the corridor, Mater's reflection is cast on the wall, but Holley's reflection isn't. (00:29:55)
Revealing mistake: When Charlie Brown stops to watch Snoopy sitting atop the doghouse, eating dog bones, the pile of bones never goes down even though Snoopy takes from the pile three times. (00:03:25)
Revealing mistake: Towards the end of the movie, the principal puts on his hat which turns his hair green. But you can see the green paint has already been applied before he puts his hat on.