Credit: Amazon.com; Michael Loccisano/Getty Images

Now that Fifty Shades of Grey is bound for the big screen, actors and actresses are clamoring for one of the two lead roles — Christian Grey and Anastasia Steele.

As they should.

With the Twilight franchise now a wrap, BDSM devotee Christian and his impressionable protégée, Anastasia, are poised to overtake Edward and Bella as moviedom's "it" couple.

Several actors have expressed interest in the part of Christian, including True Blood sexpot Alexander Skarsgard (who jokes that he already has a sex dungeon) and Vampire Diaries hottie Ian Somerhalder. Magic Mike's Channing Tatum has also said he'd play Christian, but only if his wife, Jenna Dewan-Tatum, were to star opposite him. White Collar star Matt Bomer, one of People's Sexiest Men Alive of 2012, has sparked a Facebook and Twitter movement to get him the part — in open defiance of writer Bret Easton Ellis's controversial assertion that it won't happen "because he is openly gay."

Two guys who reportedly aren't in the running? Ryan Gosling (sob!) and Robert Pattinson (shrug).

Actresses who think they'd bring the perfect blend of innocence and sexual curiosity to Anastasia include Pretty Little Liars’ Ashley Benson and Lucy Hale. Keira Knightley, Mila Kunis, and Elizabeth Olsen are all a firm no, and despite reports that she's a lock for the part, Emma Watson also doesn't want to star. 

Of the following smoking-hot men and women, who would you like to see in each role (even if they don't see themselves in it)? Keep in mind that the film will be rated a steamy NC-17.