Cary Granat’s Bedrock Studios has acquired screen rights to The Flint Heart, the upcoming novel by Katherine Paterson, for a live action fantasy film. Granat shepherded the Walden Media/Media screen adaptation of Paterson’s The Bridge to Terabithia, a film that grossed near $140 million worldwide. Bedrock Studios is teaming with Arcady Bay, the company run by the author’s son, David Paterson. He will write the screenplay.

The Flint Heart spans from the Stone Age to contemporary England, and centers around a magical amulet that brings power and despair to those handling it. The book, based on a story the author hatched with husband, John Paterson Sr., will be published by Candlewick Press in 2011.

“Reuniting with Katherine and Arcady Bay Entertainment is something we’ve been looking forward to for quite some time,” Granat said. “Katherine gives us such a rich tapestry to work with, and story lines to bring to life on the screen.” Granat, the former Walden CEO and co-founder, founded Bedrock Studios by pooling the resources of his Granat Entertainment with Reel FX and its principal, Ed Jones. The company is developing fantasy fare that includes Rats of NIMH, A Wrinkle in Time and Dinosaur Bob.