By Jeff Labrecque
Updated December 10, 2010 at 05:48 PM EST
Credit: Jason LaVeris/

Image Credit: Jason LaVeris/FilmMagic.comLily Collins, who played Sandra Bullock’s daughter in The Blind Side and will star in next summer’s Priest with Paul Bettany, has been cast in Mortal Instruments, a potential franchise based on the YA novels of Cassandra Clare. According to her publicist, Collins will play Clary Fray, a talented demon-hunter. Scott Charles Stewart (Priest, Legion) is directing for Screen Gems.

Read more: