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. "Stormbreaker" is produced by Marc Samuelson, Peter Samuelson, Steve Christian and Andreas Grosch, with Hilary Dugdale, Nigel Green, Andreas Schmid and Horowitz executive producing.

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