I was not expecting to enjoy this at all. At the time I saw it I wasn't a HUGE fan of Dave Chappelle, having only seen a few episodes of his show. Also, I could care less about hip-hop. I ended up being pleasantly surprised. It's one of the best documentaries I've seen and I gained a huge amount of respect for the hip hop music industry AND Mr. Dave Chappelle...I'm now a huge fan of both.
(and it was directed by Michel Gondry! No wonder I enjoyed it so much!)