According to The Hollywood Reporter, Andy Serkis, the man who provided the movement to Gollum in The Lord of the Rings, and Stephen Fry have joined the cast of Stormbreaker, the producers said Monday.

Directed by Geoffrey Sax from a screenplay by Anthony Horowitz and based on the first of Horowitz's series of novels about a reluctant teenage spy, the cast also includes Sarah Bolger, Damian Lewis, Ewan McGregor, Bill Nighy, Sophie Okonedo, Missi Pyle, Alicia Silverstone and Ashley Walters.

Serkis will play Mr. Grin, the unfortunately disfigured henchman of megalomaniac villain Darrius Sayle, played by Mickey Rourke, and Fry will appear as Smithers, the secret creator and provider of exotic gadgetry to the spies of MI6.