The film adaptation of 50 Shades of Grey is starting to come together.

Author EL James revealed that the movie now has a director.

She tweeted:

Sam Taylor-Johnson's directorial debut was 2009's Nowhere Boy, which was about John Lennon's childhood.

But who will play the book's lead characters?

There has been no official word as to that so far - Alex Pettyfer reportedly auditioned for a part, and Emma Watson has denied rumors she was cast as Anastasia Steele.

Who would you want to see cast in the movie? Tell us in the comments section below!