In the new novel A Dog’s Purpose, a pup named Bailey finds himself reincarnated over the years as various canines, searching for his reason for existing. If one of those reasons is to become a movie star, the character may have just made it - DreamWorks has picked up the rights to W. Bruce Cameron's novel with plans to turn it into a live-action film. "I saw this as a movie virtually from the time the idea showed up whole cloth in my head," says the writer, whose previous book 8 Simple Rules for Dating My Teenage Daughter was turned into the John Ritter sitcom. He says he hopes for "an uplifting movie, a movie about joy and purpose and redemption. And at the very end, we don't have to bury the main character."