Rapper/actor Mos Def is all set to play legendary rock n' roller Chuck Berry in Sony BMG's upcoming movie "Cadillac Records."

Written and directed by Darnell Martin, the film is currently being shot in New Jersey.

Def has been joined by American actress and former model Gabrielle Union, who plays Geneva Wade, a girlfriend of Muddy Waters, reports the Hollywood Reporter.

The film is set in 1950s Chicago and follows the turbulent but exciting lives of Leonard Chess, who founded Chess Records, and the label's artists, including Waters, Little Walter and Howlin' Wolf.

The label was started by Chess along with his younger brother, Phil. He then started the record company by traveling the south selling records out of the trunk of their Cadillac.

Produced by Sony BMG's Andrew Lack and Sofia Sondervan, the cast of the film includes Adrien Brody (Chess), Jeffrey Wright (Waters), and Beyonce Knowles (Etta James).

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