The main cast for the much-anticipated movie adaptation of E.L. James' bestseller Fifty Shades Of Grey has been set following the hiring of Eloise Mumford as Kate Kavanagh.

Mumford has signed on to play sexy student Anastasia Steele's best friend in the film, which will star Jamie Dornan and Dakota Johnson.

Director Sam Taylor-Johnson has also cast Luke Grimes as Christian Grey's brother, Elliot; Victor Rasuk as Anastasia's close friend, Jose; and Jennifer Ehle as her mother, Carla.