It's official. Actor Charlie Hunnam will play Christian Grey in the film adaptation of Fifty Shades of Grey. The news was tweeted by author E.L. James on Monday. Hunnam, a 33-year-old British actor, is best known for his role as Jackson "Jax" Teller on FX's Sons of Anarchy series. Dakota Johnson will play his college-student love interest Anastasia Steele. Universal expects to release the movie on August 1, 2014.