News: The Rock and Jessica Biel Voice ‘Planet 51′

Dwayne “The Rock” Johnson and Jessica Biel are going to be lending their voices to New Line’s first-ever animated film, the CG-sci-fi saga Planet 51. Seann William Scott and Justin Long are also laying down vocal tracks. Here’s the plot skinny:

The film revolves around a group of residents on the eponymous planet who fear an alien invasion. Johnson will play astronaut Capt. Charles “Chuck” Baker, who arrives from Earth and confirms their worst fears. He’s forced to avoid capture so he can find his spaceship and return home.

Long will voice Lem, the local who Chuck befriends. Biel will voice Neera, the film’s female protagonist and Lem’s love interest. Scott will voice Lem’s sidekick, Skiff.