Although the highly anticipated film adaptation ofFifty Shades of Grey has just began filming this week, the production is still casting character in the film.

The production has most recently cast Rita Ora to play Mia Grey in the upcoming S&M film.

Variety reported the casting news, stating that Ora will play Christian Grey’s adoptive sister, Mia, in the feature adaptation of E.L. James’ popular romance novel. All three of the Grey siblings are adopted, including Christian and his brother Elliot (Luke Grimes). In the book, Mia’s in her early twenties and is upbeat and friendly… Fifty Shades books together, so it’s hard to be sure, but I don’t remember there being a lot of Mia in the first book. However, throughout the trilogy she does eventually form a friendship with the story’s protagonist Anastasia Steele, and it seems we’ll see her introduced in the movie. It’ll be interesting to see how Ora takes on the character. ” – cinema blend

Even though we still think Christian Grey might be off casting wise, everything else is definitely getting interesting.