Earlier this week, British model Poppy Delevingne made it to the list of potential stars that could play Anastasia Steele. The character of Ana is one of the most highly-sought out roles for the film adaptation of "Fifty Shades of Grey." If Poppy had greatly been considered for the role, would her sister Cara Delevingne also make the cut?

Fans of "Fifty Shades of Grey" are patiently waiting for the announcement of an official cast. While the big reveal is certainly months in the future, "Fifty Shaders" taking their time to name potential stars that could star in the movie as Christian Grey and Anastasia Steele.

Leading in a lot of fan polls for the role of Christian Grey is "Vampire Diaries" star, Ian Somerhalder. Following close to Ian is "Man of Steel" Henry Cavill and "White Collar" star, Matt Bomer. As for the role of Anastasia Steele, Emilia Clarke of "Game of Thrones" is in a tight competition with Alexis Bledel of "Gilmore Girls" for the role. A few other favourites include Felicity Jones, Eve Hewson, Emma Watson, Troian Bellisario and Lucy Hale.

Of course, these are just wild guesses and numbers stating these stars could nab the roles. However, the favourites keep changing per day. For one, a new favourite set for the role of Anastasia Steele is British model and socialite, Poppy Delevingne.

"While gorgeous British model and socialite Poppy Delevingne doesn't necessarily fit the part look-wise (with her mile-long legs and uber blonde hair) she definitely has the mysteriously sexy and tease-worthy persona down! Just check out the Delevingne's recent BDSM-inspired ad for Agent Provocateur entitled "Valentine's Night" - it'll keep several "Fifty Shades" fans begging for more!" states a post by Opposing Views, adding, "One of England's beautiful "It" girls, Delevingne 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."

Poppy is clearly a deviation of tastes for the role of Ana which would of course lead a few fans to say no. Yet, models when trained can clearly be set for stardom in the movie industry. One other model that could play Anastasia Steele is Poppy's sister, Cara Delevingne.

What would "Fifty Shades" fans think? Which Delevingne sister is suitable to play Ana: Poppy or Cara? Check out the slideshow to see more of these model moguls.