Fifty Shades of Grey movie casting is expected to be announced soon. Fans are keeping their fingers crossed for their favourite celebs to get the Anastasia Steele and Christian Grey roles. Emilia Clarke, Henry Cavill, Blake Lively and Ryan Gosling are among the top names in Fifty Shades online polls. Can the four snag the coveted roles, including Kate Kavanagh and Elliott Grey?

Emilia Clarke. She is most popularly known for her Game of Thrones character, Daenerys Targaryen. Emilia Clarke embodies both vulnerability and unwavering courage. Emilia does not mind going nude for sex scenes, too. She has shown the transformation of an innocent young girl into an army leader. Now fans want to see Emilia in Fifty Shades of Grey movie as Ana Steele, a young college fresh grad and a BDSM sex submissive.

Henry Cavill. Superman 2013 Henry Cavill is the sexiest actor for the Christian Grey role, many fans argue. Henry has a wide online following, with fans making make-believe Fifty Shades posters and trailers featuring other actresses like Emilia Clarke with Henry. For this Man of Steele, however, it is best to comment only when there's real news on the subject.

Blake Lively. This "Gossip Girl" alum has "legs for days," as her erstwhile character Serena van der Woodsen has once been described. Blake is gorgeous, stunning, and with a strong sex appeal that can turn heads anywhere. Many Fifty Shades fans say Blake Lively is perfect for the Kate Kavanagh role, that of Ana's best friend and college roomie.

Ryan Gosling. He is the object of many women's fantasies. In fact, a lot of Fifty Shades readers imagine Ryan Gosling as the perfect Christian Grey. But many of Henry Cavill's fans would rather see Ryan as Christian's brother, Elliott Grey. Ryan Gosling and Blake Lively make the perfect Elliott and Kate, according to many readers of E.L. James' erotic fiction.

The film adaptation of James' bestselling erotic novel is scheduled to hit the theatres in August 2014. The 3-part series, which will reportedly have a fourth book, has sold over 70 million copies worldwide. Fifty Shades of Grey is also often called "mommy porn" for its sex fantasy content.

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