Focus Features announced Thursday that the film, based on the erotic novel by E.L. James, is set to hit theaters August 1, 2014.
A director, Sam Taylor-Johnson ("Nowhere Boy"), was chosen last week, but everyone wants know who will play the virginal Anastasia Steele and her controlling billionaire lover, Christian Grey.
A source told HollywoodLife.com, “A reveal of the cast is currently planned for Comic-Con 2013.”
To date, the "Fifty Shades" trilogy has sold more than 70 million copies worldwide.
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The steamy "Fifty Shades of Grey” will be heating up summer audiences in 2014, but the cast is still undetermined!