" The House Bunny's" Stone has signed on for "Easy A," according to Variety. The movie follows a high-school student (Stone) who, having faked sluttiness in exchange for popularity, suddenly finds herself getting the "Scarlet Letter" treatment.
Bates, meanwhile, has agreed to co-star with Sandra Bullock in "The Blindside." The movie will tell the true story of Michael Oher, a black boy adopted by a white family, who has grown into one of the 2009 NFL draft's rising stars.
Stone, 20, can be seen this year in "Ghosts of Girlfriends Past." Bates starred in 2008's " Tyler Perry's the Family that Preys."