DAVE CHAPPELLE'S BLOCK PARTY

Dave Chappelle's Block Party is teeming with something that has been sorely absent from 2006's movie crop: joy. In the late summer of 2004, Chappelle, fresh from signing his now-legendary - and currently defunct - $50-million contract with Comedy Central, spontaneously decided to throw a block-wide bash, and recruited a batch of rap and R&B performers (including Mos Def, Erykah Badu, Kanye West, Jill Scott, and Lauryn Hill and the reunited Fugees) to perform a day-long gig in Brooklyn; the resulting concert doc features highlights from the concert interspersed with scenes of Chappelle kicking back with the stars and the block-party attendees, and the movie, directed by Michel Gondry, is a giddy, oftentimes exhilarating spectacle. It's hard to determine who's having more fun - the musicians, whose on-stage performances are heartfelt and vital; the Brooklyn masses, whose enjoyment of the show is palpable; or the movie's audience.