Snoop Dogg has reached a deal with Ames Universal and SRI Entertainment to play blues guitarist Fillmore Slim in the biopic The Legend of Fillmore Slim.  Slim started pursuing a music career in the 1950s, but was lured away by the pimp game.  During the 1960s and 1970s, Slim was a prominent pimp in San Francisco, known by such colorful nicknames as "The West Coast Godfather of the Game" and "The Pope of Pimping."  Slim eventually returned to music in the 1980s, and is currently touring at the age of 77.  Co-producer Alan Ames tells Deadline:

“This film will span decades, from Slim’s emergence as a musician, to his fascination with the fast life, through his years of incarceration and his redemption.”

There are clear parallels between the careers (or at least the public images of) Slim and Snoop, aka "Tha Doggfather."  I don't know if that will draw a good performance out of the rapper, but it can't hurt.  Hawthorne James will direct The Legend of Fillmore Slim from a script by Ames and Carole Parker.  Pre-production begins in December in advance of a March start date.