directed by Steve James ; produced by Mark Mitten, p.g.a, Julie Goldman, p.g.a. ; a Mitten Media, Motto Pictures and Kartemquin Films production for WGBH/Frontline and Independent Television Service (ITVS) in association with Blue Ice Docs
a production of Mercury Productions in association with WGBH/Boston for Nova ; produced by Mark Olshaker and Larry Klein ; written by Mark Olshaker ; directed by Larry Klein