well, in the book isn't Laurent supposed to be a french white guy? but i guess they changed it a little bit in the movie. and since he was a black human, he would still be black as a vampire. just lighter then usual.
RACIST!! LOL just kidding, of course! *ahem* Excuse my weird sense of humor..= P
I'm guessing that he was black when he was human so obviously he stayed black when he was a vampire. But ya, I was confused about that as well, I thought he was supposed to be white; I guess the movie changed it atau something.