Actor Robert Pattinson has joined the cast of Brady Corbet's directorial debut The Childhood of a Leader. The 27-year-old will reunite with his Cosmopolis co-star Juliette Binoche for the movie, which will also see him sharing the screen with Tim Roth, reports aceshowbiz.com. The Childhood of a Leader revolves around the youth of a post World War I leader. Corbet co-wrote the script of the movie with Mona Fastvold, who directed The Sleepwalker. The Childhood of a Leader will be shot in Europe next year.