Fifty Shades of Grey fans are in for a sexy surprise! can report that the popular book featuring billionaire businessman Christian Grey and college coed Anastasia Steele is set to hit the big screen in all its glory next summer!

OK! Investigates: All the Titillating Secrets of the Fifty Shades of Grey Film Revealed!

The film will open on August 1, 2014 in the U.S. and then roll out around the world.

As reported, Fifty Shades of Grey fans were whipped into a frenzy when word got out in April that Oscar-nominated director Gus Van Sant shot a test scene with actor Alex Pettyfer in the role of the erotic bestseller’s protagonist, Christian.

OK! News: See Author E L James' Hints About Who Will Win the Role of Christian Grey

While it's now obvious Van Sant isn't involved with the project, speculation over who will play Christian and Anastasia rages on.

Who would you love to see cast in the movie version of the book? Tell us in the comments section or on Twitter @OKMagazine.

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