50 Shades of Grey Movie Casting News UPDATE: Poppy Delevingne's Sexy, BDSM-Inspired Agent Provocateur 'Audition' Stirs Anastasia Steele Buzz [VIDEO]

Fan are dying to know which lucky Hollywood guy and gal will finally snag the coveted roles of Christian Grey and Anastasia Steele in E.L. James' highly-anticipated film adaptation of "Fifty Shades of Grey." While rumors surrounding the kinky, handsome, and sophisticated Christian Grey continue to run rampant (Ian Somerhalder?! Matt Bomer?! Henry Cavill?! Which heartthrob will it be?!) the buzz surrounding the young and "innocent" Ana Steele has considerably died down... until now. While gorgeous British model and socialite Poppy Delevingne doesn't necessarily fit the part look-wise, she definitely has the mysteriously sexy and tease-worthy persona down! Just check out the 26-year-old's recent BDSM-inspired ad for Agent Provocateur entitled "Valentine's Night" - it'll keep several "Fifty Shades" fans begging for more!

First, some background info on Delevingne, one of England's beautiful "It" girls. She was first spotted by Storm Model Management founder Sarah Doukas, and she eventually went on to model for several prestigious brands and designers including Shiatzy Chen, Laura Ashley, Anya Hindmarch, Paige Adams, Mango, Alberta Ferretti, Burberry, Julien Macdonald, Marc Jacobs, and Louis Vuitton. Delevingne is a Young Ambassador for the British Fashion Council and a Chanel brand ambassador who is a prominent figure in the London social scene.

Okay, so several "Fifty Shades of Grey" fans are probably thinking - WTF. Supermodel Delevingne is blonde, fair-skinned, and uber-skinny... not the perfect Ana just based solely off of looks. But give the girl a chance... check out her kinky ad for the luxury lingerie line, Agent Provocateur:

Can fans sort of picture it now - maybe throw in some dark hair dye and a fresh makeup job?

Well, several online enthusiasts agree that even if she's not right for the part of Ana, she definitely "deserves some kind of Fifty Shades movie role for this Agent Provocateur performance." Many "Fifty Shades" fan sites are buzzing over Delevingne's sexy and seductive lingerie performance. Some are even comparing this Agent Provocateur ad to an unofficial Anastasia Steele audition tape.

So how about it? Would E.L. James approve, or just scoff?