Biopic of music producer Leonard Chess, whose record label became a key element in the development of blues and early rock, providing a home for some of the most exciting musical talents in 1950s America, including Etta James, Muddy Waters and Chuck Berry. Fact-based drama, starring Adrien Brody, Beyonce Knowles, Jeffrey Wright and Gabrielle Union.

The story of sex, violence, race and rock and roll in 1950s Chicago, and the exciting but turbulent lives of some of America's musical legends, including Muddy Waters, Leonard Chess, Little Walter, Howlin' Wolf, Etta James and Chuck Berry.