hunnam's impercentive tv schedule which is not allowing him to adequately prepare for the role of christian grey." not too long after, e.l. james the author of the erotic best seller tweeted "i wish charlie all the best." but was scheduling the real reason for the surprise exit? >> what the real speculation was that the tension he was getting for taking on this role, both negative and positive was just too much for him to handle and he had to get out of it. >> reporter: in a recent interview with "entertainment weekly," the actor admits there are so many fans of that book and i know on the surface i'm probably not what everybody imagined. dakota johnson signed on as the leading lady,an anastasia steele. now that hunnam is out there is speculation of johnson's future in the film. >> one of the reason he got because of the chemistry with dakota johnson. so this does raise the question is she potentially on the chopping block? >> reporter: with filming set