Alvin And The Chipmunks 4: Return To The Forest

Plot
When a music illustrator came to tell that, nobody likes the chipmunks and the chipettes anymore, Dave has no choice but to take them back to the forest where they use to live.

Cast
Blair Underwood as Oscar the music illustrator

Jason Lee as Dave

Justin Long as Alvin

Matthew Gray Gubler as Simon

Jesse McCartney as Theodore

David Cross as Ian Hawk