Live action and CG animation mix in "Alvin and the Chipmunks" (2007), a charming family tale that brings Ross Bagdasarian's singing rodents to life. Struggling songwriter Dave Seville's (Jason Lee) career gets a boost when he meets mischievous musical chipmunks Alvin, Simon, and Theodore, who help him pen a hit tune. But when a sleazy record producer (David Cross) tries to exploit the trio, it's up to Dave to save the day. Features the voices of Justin Long, Matthew Gray Gubler, Jesse McCartney. "Alvin and the Chipmunks: The Squeakquel" (2009) finds the boys without a guardian when Dave (Lee) is injured. His nephew (Zachary Levi) tries to look after the tiny pop stars, who must deal with a female trio of singing rodents, The Chipettes, and crooked record exec Ian Hawk (Cross). With the voices of Long, Amy Poehler. And, Alvin, Simon, Theodore, Dave (Lee), Ian (Cross), and the Chipettes are marooned on a tropical island, in "Alvin and the Chipmunks: Chipwrecked" (2011). Their adventure includes an encounter with a mysterious castaway (Jenny Slate), a volcano, buried treasure, and more. Long, Poehler supply voices. 4 1/2 hrs. total on three discs.