LOS ANGELES (AP) — Charlie Hunnam will likely have to bare all and engage in some very graphic sex scenes as the leading man in "50 Shades of Grey," but he says it's not a new dimension for him.

The "Sons of Anarchy" star says years ago, he was in a miniseries called "Queer as Folk" and there were explicit sex scenes, so he doesn't see his role as Christian Grey as a problem but an exciting challenge.

After months of speculation, the 33-year-old Hunnam was chosen to play Grey and Dakota Johnson was cast as Anastasia Steele, the main characters in the erotic, best-selling novel by E. L. James. Hunnam talked about his role on Saturday night as he attended the premiere of the sixth season of cable TV show "Sons of Anarchy."