Xzibit was surprisingly good and natural in
Gridiron Gang (a movie which, weirdly, almost every day I keep finding more and more people who liked it alot)*.
I still say Ludacris needs to do some more acting. Busta Rhymes was pretty good in
Narc, too.
Of course, none of them hold a candle to the best rapper-turned-actor of cinema:
* That sentence is so badly written it should be taken out back and shot.