"Fifty Shades of Grey" fans were clearly disappointed with the casting choices for the film adaptation. Dakota Johnson and Charlie Hunnam were the least expected stars to nab the lead couple roles of Anastasia Steele and Christian Grey. Not to worry though because there is still one other couple in the film that needs filling out. Here are the top couples who could portray Elliot Grey and Kate Kavanagh.

E.L. James finally made the official cast announcement early this week, but her choices clearly disappointed hard core fans of the erotica series. In fact, an online petition has been initiated in the hopes of replacing Charlie Hunnam and Dakota Johnson with Matt Bomer and Alexis Bledel. The production studio is unlikely to replace the cast with the movie set to begin filming this fall though.

Well, fans may have lost all hope for their favourite couple, Chris and Ana, but there is one other "Fifty Shades" couple that still needs stars for the part. Actors for Christian Grey's older brother, Elliot Grey, and Anastasia Steele's best friend, Kate Kavanagh, are yet to be announced. Hopefully, this time around E.L. James and the producers get the casting done right.

If a chemistry test would be needed again before casting both stars for the part, why not simply cast real life couples to ensure the spark? From Christian Cooke and Diana Agron to Nicholas Hoult and Jennifer Lawrence, check out the slideshow to see real life couples suited to play Elliot Grey and Kate Kavanagh for "Fifty Shades of Grey."

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