Deliberate mistake: In the housing block that Dave's house is in, the house numbers do not match - because In one shot of Claire walking past Dave's house, you can see that the house numbers are in the 1500's - one homes number is clearly 1516. However Dave's house number is 1958. However this is a deliberate mistake as the 1958 on Dave's house is a reference to when the Chipmunk fever was born. (00:23:50 - 00:32:35)
Alvin and the Chipmunks (2007)
1 deliberate mistake
Directed by: Tim Hill
Starring: Justin Long, Jason Lee, Jesse McCartney, David Cross, Jane Lynch, Cameron Richardson
Continuity mistake: Once the chipmunks are inside the food cupboards, they begin to devour everything inside. Theodore is seen chewing off a corner of a box of Lucky Charms cereal and eating the cereal that pours from the hole. But a few shots later when the same box of cereal can be seen, the hole that Theodore gnawed from the corner of the box is gone and the corner is fully intact. (00:11:00)
Dave Seville: Where are your parents?
Simon: Well, when you're a chipmunk, your parents take care of you for a week, then they take off.
Alvin: Our parents were hippies. They went to join a commune.
More trivia for Alvin and the Chipmunks
Question: Throughout the course of the movie, why is Ian so obsessed with making money off the Chipmunks? After all, he lives in a mansion, has an outdoor pool, a nice car, and a group of house servants, and if he has enough money to afford that many extra toys for the Chipmunks when they arrive, any extra diamond or ring shouldn't be a problem for him.
Answer: Ian is a greedy "business man", no matter how much money he has he will always want more.