Whether your thing is singing rodents or sleuthing Englishmen, you'll want to start heading to the theater.

In 'Alvin and the Chipmunks: Chipwrecked,' the squeaky trio of Alvin, Simon and Theodore find themselves marooned on a tropical island after they go overboard from their cruise ship.

And 'Sherlock Holmes: A Game of Shadows' features star Robert Downey Jr. back on the case as London's greatest detective, investigating the evil plot of a new criminal mastermind.

Here’s a sneak peek.

Alvin and the Chipmunks: Chipwrecked

Directed by: Mike Mitchell
Starring: Jason Lee, Justin Long, Matthew Gray Gubler, Jesse McCartney, Amy Poehler, Anna Faris, Christina Applegate, David Cross, Jenny Slate, Alan Tudyk
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Sherlock Holmes: A Game of Shadows

Directed by: Guy Ritchie
Starring: Robert Downey, Jr., Jude Law, Noomi Rapace, Rachel McAdams, Jared Harris
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