Beatboxing is the hip-hop discipline of vocally mimicking drum machines and turntable scratching. This lively video documentary by Joey Garfield traces the form’s development from early practitioners like Darren “Buff” Robinson of the Fat Boys and Doug E. Fresh through current stars like Rahzel and Scratch and compares it to African vocal traditions and jazz scat singing. (Marie Daulne of the Franco-African group Zap Mama demonstrates and analyzes international variations on the genre.) There are loads of interviews with hip-hop heavies and some priceless archival material—including a clip of Buff doing his thing with Regis Philbin on the Today show in 1984. 80 min.