Rihanna is set to star in her first big screen debut!

It is being reported that the Umbrella chanteuse has been cast as Carol in the film adaptation of Iceberg Slim's book Mama Black Widow.

"Mama Black Widow is the portrait of a black family's migration from the southern Mississippi fields of the segregated south to the ghettoized black underworld of Chicago during the 1930's. The story follows Otis Tilson's struggle to keep his family together as they navigate through a world of alcoholism, pimping, sexual deviation and racial degradation. Told in the gut level language of the original novel by Iceberg Slim, the family's journey is a harsh testament of lives lived on the margins of a racist and predatory world."

The rest of the cast includes Anthony Anderson, Kerry Washington, and Macy Gray.

What do you think, Box Office Smash or Crash?