After Simon falls off a palm tree, when Alvin tries to help him up, when Simon glares at him, his nose briefly turns huge!
If the Chipmunks and Chipettes found out what Klaus and Claudia were up to (and they were among the FBI's most wanted), why didn't anybody give them any large reward after their arrest?! Instead they get nothing but punishment?!
While the kids are grabing and leaving dolls (during the "Off To See The World" song)Brittany grabs a Brittany stuffed doll (off of the Skii-lift), while Jeanette leaves a Jeanette doll, but the girls are suppose to leave a girl doll and grab a boy doll.
In the song Girls/Boys of Rock and Roll, when the boys are singing "We are the boys, we are the boys, we are the boys of rock and roll," Simon and Theodore switch places.