Paul Haggis (Crash) just added a new actor to the cast of his latest project, The Next Three Days: RZA. That may sound like a surprising choice — what's the founder of Wu-Tang doing in a serious drama?! — but the big screen is nothing new to some of the world's biggest rappers. Think about it: Queen Latifah, Ludacris, and Mos Def have all successfully segued into the movie biz, and they're not the only ones. Check out my slideshow, and then tell me who you think did it best.