Continuity mistake: After the Grinch unscrews the light bulb in the town Christmas tree, all the lights in the town go dark and the Grinch starts to take off in his sled-thing. When they show a close up of him, the lights are on. Then a few seconds later, the lights are off again.
Continuity mistake: When Kuzco and Yzma make a dive for the potion bottle, Yzma is turned into a cat simply by landing on the potion bottle. This suggests that a person only needs to touch the potion in order to be affected. However, when Kronk and Yzma are serving Kuzco dinner and are trying to avoid poisoning themselves, Kronk pours his potion drink on himself and is not affected.
Continuity mistake: After the ball game, there is a cut over Miguel's eyebrow. Right after this scene, the cut has disappeared.
Continuity mistake: In one scene where the dad is leaving for work, he sees a dog and in that shot you see his mail truck and the door is open. Then you go to a close-up of the dog and when he runs to his mail truck the door is now shut.
Continuity mistake: After Spike chases Jean-Claude out of the church, the parents and their kids stand outside. Chuckie is in his father's arms holding his Wa-wa (teddy bear). They go back inside, where Kira gives Chuckie that same missing teddy bear.
Continuity mistake: When Mrs. Tweedy gets the idea of converting her farm when reading the brochure called "Sick and tired of making minuscule profits," a wedding picture of the husband and wife is seen on a cupboard at the back. Then, in the next shot, as Mrs. Tweedy slams her hand on her desk that same picture suddenly happens to be on the desk.
Continuity mistake: When Melody is in her room getting ready for her party, at one shot her hair is down. In the next shot of her, it's in a ponytail, and in the next it's down again.
Continuity mistake: When Cruella (Glenn Close) gets turned into a cake, the dogs squirt coloured icing all over her face. A few seconds later she falls against a glass door with her face, and red icing is smeared all over her right cheek as she slides down the glass. In the next cut the arresting officers are taking her into custody, and she has a neat yellow blob of icing on the same cheek, and all the smeared red icing is gone.
Continuity mistake: When Entei is running off with Delia, Ash yells "Mom! Pikachu!", and then the cameraman notices Ash as he runs by. However, when Charizard is viewing the TV broadcast, Ash says the line as he is passing by the camera, not before. (00:22:57)
Continuity mistake: When Tony is in the lesson talking about vampires, the blackboard behind the teacher is free of any writing. Then, between shots, '300' is written on the blackboard, even though the teacher didn't write it.
Continuity mistake: In the underground garage scene with Russ, Rusty and Janet, Rusty's hair is combed straight down and very neat when he comes out from behind the pillar. When Janet says, "I should have worn my magic bra and panties.", Rusty starts laughing and his hair is messed up. But then when Rusty is snapping his seat belt as he's sitting in the Porsche, his hair is back to being neat.
Continuity mistake: When the they first show the Evil Snow-Plough Man, he's chasing kids and they run off to the left side of the road as proven when the kid's sled gets crushed. However, once he's past, they all pop up from a mound of snow on the right side of the road.
Continuity mistake: In the beginning of the movie when the letters of "Univershell" rotate around the Universal-logo globe, Earth is pictured as preglacial one-continent planet. When it's pictured as a background looking from out of the UFO it's the regular spaceview of Earth.
Continuity mistake: In the scene when the FBI agent is in the TV tower early on in the film, you see her put the FBI Identification card thing back into her 'mobile phone holder' in her bag. Then you see the guards charging up the stairs. Then the shot goes back to the FBI agent. She hasn't put her ID card thing inside her bag yet, she is still holding it.
Continuity mistake: When Goofy throws his horseshoe at Bradley near the end of the film, it hits him in the neck. But later when you see Bradley, he has a black eye even though the horseshoe never hit him in the eye.
Continuity mistake: The jersey on the chimp goes back and forth between Ribchimpsky (the injured player) and Jack. The numbers on the jersey change as well.
Continuity mistake: When Aladar is trying to help Eema get up, his eyes turn blue in one shot and in the next, they turn back to the usual green. The same thing happens at the end of the movie, when Aladar's baby hatches out of the egg.
Continuity mistake: Allie's brother asks their dad (who just finished pitching the "bones for bowsers dot com " idea to Sam) "How long are you gonna be gone this time." He raises and lowers the hands in the same shot, and in the next the hands are raised again. (00:03:15)