Continuity mistake: There is a scene where the Chipmunks and Chipettes are singing the song "Girls of Rock and Roll." In that scene, it shows the boys walking up the stairs together and from left to right the order is: Simon, Alvin & Theodore. The shot goes to the girls then back to the guys. The order of the guys has switched: (left to right) Theodore, Alvin & Simon.
Continuity mistake: Near the end of the movie, right before the semi-finals, they say that only eight men are left. When they introduce the men, they only call out six names.
Continuity mistake: After Gilbert Blythe falls in the lake with his bicycle, he and Anne run into Diana, and Gilbert's clothes and hair are perfectly dry.
Continuity mistake: In the beginning when the photo of the Master is broken, the pieces of glass change position and then disappear altogether.
Continuity mistake: During the scene when Ernest is driving the bus "blind," the type of bus changes from a Ford to an International.
Continuity mistake: Nuclear Man dents the floor with his footsteps, but in a wider angle the floor is intact.
Continuity mistake: When the "ghost" is first seen, it is mostly obscured by a curtain; only its right shoulder is visible. In the next shot, however, it is right in the middle of the window, and nearly the entire cutout is exposed.
Continuity mistake: In the scene on the roof when the local hoodlum is attempting to take on the flying saucers you see the scene from two points of view. There are four people watching the local hoodlum getting fried. From the front, from left to right you see an old guy; a tall black guy; a women in pink and then a young guy with lots of hair. When seeing the scene from behind these watchers, you only see the old guy and the guy with the all the hair. Each time the angle changes the tall black guy and the women in pink are there.
Continuity mistake: At the end of the movie the daughter hands Harry a stem of flowers. The flowers have small daisy like heads. However, when the shot changes to show Harry holding the stem, it is very different. There are less flowers on the stem and the petals are larger.
Continuity mistake: When Valerie Vomit is about to steal the Pepsi truck, we see the driver standing behind the truck. In the next closeup we see a cord attached to his pants and the truck, which, as a result, rips his pants off as Valerie speeds off with the truck. Yet in the shot previous to this, there was no cord attached to his pants or the truck. (00:29:20)
Continuity mistake: The dragon on Jinx's shirt changes in size throughout the movie.
Continuity mistake: After Todd Howard knocks out his opponent in the boxing match, the crowd immediately starts throwing cups of popcorn into the ring. The camera cuts to Todd cheering and then an overview shot of his opponent laying face down on the canvas. At that view you can see that there is no rubbish or popcorn or anything else in the ring. Then when the camera cuts back to a side view there is loads of rubbish and popcorn all over the place once again.
Continuity mistake: When George's wife asks him what made him drive all the way out here, their car is on the back of a large dinosaur at that moment. When it cuts to a closer angle for his reply, suddenly they are on a dirt road.