Cohen signs up for Tarantino slave-era movie

Funnyman Sacha Baron Cohen's next movie will be no laughing matter.

The British comic is in negotiations to join the cast of Director Quentin Tarantino's violent slave-era western "Django Unchained".

The film follows slave-turned-bounty-hunter Django, played by Oscar winner Jamie Foxx, on a mission to rescue his wife from a sadistic slave master.