Rachel McAdams (38) was wildly successful with her roles in both "Mean Girls" and "The Notebook". However, she is considered very picky when it comes to choosing new roles. So far, she's turned down the leads in "Mission: Impossible III", "Casino Royale" and "The Devil Wears Prada". Especially in the case of "The Devil Wears Prada", she's probably still upset today. The movie helped Anne Hathaway achieve her breakthrough....