UNDATED (AP) - We don't know who's in as the lead in the movie version of "50 Shades of Gray," but we do know who is out. Charlie Hunnam has been excused from the cast - something the studio and actor are calling a mutual decision. Hunnam drew some fire from fans of the book who didn't think he'd fit the role of the seductive billionaire Christian Gray. But the "Sons of Anarchy" star said he was up to the challenge. But now Hunnam says his schedule is too busy to take on the challenge. Still cast in the co-starring role is Dakota Johnson.