Today, the new film 'I Am Number Four' arrives in theaters, and it remains to be seen whether audiences will make it no. 1 at the box office. Moviefone sat down with the cast and crew of the film, including director D.J. Caruso and stars Alex Pettyfer, Dianna Agron, Teresa Palmer, Timothy Olyphant and Callan McAuliffe, to discuss the challenges of bringing Pittacus Lore's novel to life on the big screen.