In March,it was reported that Leonardo DiCaprio will play the lead in Christopher Nolan's new movie 'Inception'.Variety reports that Ellen Page, Marion Cotillard, and Cillian Murphy are joining the cast.According to Cinematical,'Inception' is being described as a sci-fi action movie that takes place within "the architecture of the mind," and DiCaprio will play a CEO-type, Cotillard will be married to him, and Page will be a young grad student who is also his sidekick.