Washington previously appeared with Foxx as Della Bea Robinson in 2004's Ray, for which Foxx won an Academy Award. Last year, she played a part in Tyler Perry's For Colored Girls, and her previous credits include The Last King of Scotland, She Hate Me, Mr. and Mrs. Smith, and I Think I Love My Wife. Comic books fans will remember her turn as Alicia Masters in Fantastic Four and Fantastic Four: Rise of the Silver Surfer.
She'll next appear in the comedy The Details, and early next year she costars in A Thousand Words with Eddie Murphy.
Django Unchained is an epic spaghetti western set in the American South in the pre-Civil War era. Washington plays Broomhilda, the wife of the title character, Django, played by Foxx. Christoph Waltz appears as a former dentist and current bounty hunter who frees Django and teaches him the ways of bounty hunting, which the erstwhile slave uses to track down his wife. Eventually he finds her at a horrific plantation known as Candyland, owned by Calvin Candie.
Leonardo DiCaprio is set for the role of villainous Candie, with Samuel L. Jackson as his loyal, manipulative personal valet. Kurt Russell plays the slave-driver responsible for training male slaves in Candyland's sadistic gladiatorial combat, and Miami Vice star Don Johnson appears as a plantation owner Django encounters in his quest. Joseph Gordon-Levitt is currently in talks for an unspecified role, as well.
Django Unchained is set for release on December 25, 2012.