Haven't made it out to see the Basquiat retrospective at Brooklyn Museum yet? Tonight is the perfect time. Go tour the show, then check out a free screening of "Downtown 81," the documentary about NYC's idiosyncratic artistic scene circa 1980. Then you can chat with the film's producers, Maripol and Glenn O'Brien, and get jiggy at a dance party hosted by the don of soul, Fab 5 Freddy. Brooklyn Museum, 200 Eastern Parkway, Brooklyn, (718) 638-5000. Screening starts at 7 p.m. Free.