Set to hit theaters in December, Beyoncé's new film chronicles the rise and fall of influential R&B record label Chess Records, home to legendary artists like Muddy Waters, Buddy Guy and Chuck Berry. Knowles will be portraying "At Last" singer Etta James. The film also features Mos Def as Berry and Jeffrey Wright as Waters. cad4.jpgcad3.jpgcad2.jpgcadi1.jpg