New news: Jennifer Ehle has been cast as the mother of the female lead, played by Johnson, in the upcoming big-screen adaptation of 50 Shades of Grey. Ehle, who you may remember from Zero Dark Thirty, will play Carla Steele, Anastasia's mother who is described in the books as somewhat flighty and currently on her fourth marriage. Our bets were initially on Mary Steenburgen for this role, but Ehle's definitely an intriguing pick!
As far as the rest of the cast? Stay tuned! We're predicting a lot more announcements in the upcoming weeks. (The Hollywood Reporter)