According to Variety, Paramount and MTV Films have signed Tony winner Viola Davis to star opposite 50 Cent in the untitled action-adventure pic formerly dubbed Locked and Loaded.

Davis will play the grandmother who raised 50 Cent; rapper portrays a gangster turned musician.

The thesp, who won a Tony for "King Hedley II," was tapped this week to topline the ABC pilot "Laws of Chance."

The pic, also starring Joy Bryant, is directed by Jim Sheridan and written by Terrence Winter. Shooting's expected to start in the spring.