"Alvin and the Chipmunks: The Squeakquel" begins with The Chipmunks performing in Paris, France, where they form a rivalry with three female chipmunks who record producer Ian hopes to use to get back at The Chipmunks. The females are known as the "Chipettes." After a series of different events, The Chipettes end up moving in with Dave and the Chipmunks.
The film featured the voice talent of Justin Long as Alvin, Matthew Gray Gubler as Simon and Jesse McCartney as Theodore. The female Chipettes were voiced by Amy Poehler as Eleanor, Anna Faris as Jeanette and Christina Applegate as Brittany.
The film, which was released in 2009, was not well-received by critics, with just 21 percent of critics giving it a positive review and the review site Rotten Tomatoes giving it a score of 3.9 out of 10. Despite its low ratings, it went on to gross $214 million in the United States and $223 million internationally, which is more than the original "The Chipmunks" movie made. It also opened in the number one spot at the box office only to be thwarted to the number three spot during the weekend by other releases at the time, including "Avatar" and "Sherlock Holmes."
The film won the Favorite Movie award at the 2010 Kids' Choice Awards and the BAFTA Kids' Vote Award for Favorite Feature Film.