The "Fifty Shades of Grey" book trilogy by E.L. James is currently reigning over the New York Times Best Sellers list, taking up the top three slots. The movie rights have already been snatched up by Universal Pictures and Focus Features, so it was only a matter of time before we started thinking about casting the books' main characters for the big screen.
The "Fifty Shades" book series follows Anastasia Steele, a headstrong but innocent recent college graduate, as she navigates an erotic sexual relationship with complicated billionaire businessman Christian Grey. As the trilogy goes on, more people from Christian's past are revealed (we'll hold off on casting Christian's ex Leila or Ana's boss Jack), but from the start, it's a fairly small cast of main characters supporting and questioning Christian and Ana's tumultuous whirlwind romance.
Originally written as "Twilight" fan fiction, it's only natural for fans to hope for Robert Pattinson to play Christian and Kristen Stewart to play Ana, but we've got a few other casting ideas that will help make the movie its own. Who should play Christian Grey and Anastasia Steele? How about Ana's friends Kate and Jose, or Christian's parents, brother Elliot and sister Mia?
Click into the gallery to see our top "Fifty Shades" casting picks for all of them (and a few alternate options that would make stellar backups), then share your own casting suggestions in the comments.