a film by Ken Burns, David McMahon, Sarah Burns ; a Florentine Films production ; written by Sarah Burns & David McMahon & Ken Burns ; produced by David McMahon, Sarah Burns, Ken Burns ; produced in association with WETA, Washington, DC
ITVS presents ; Zula/Pearl Films, Inc. ; a film by Linda Goode Bryant & Laura Poitras ; produced in association with the Independent Television Service (ITVS), P.O.V./American Documentary, Inc., and the National Black Programming Consortium (NBPC)