written, produced and directed by Peter Frumkin ; produced in association with the Center for Independent Documentary ; a co-production of Peter Frumkin Productions LLC and Thirteen/WNET New York
senior producers, Graham Judd, Lisa Mirowitz ; a co-production of the NOVA/WGBH Science Unit and Vulcan Productions, Inc. ; a film by Kunhardt McGee Productions ; produced by Sabin Streeter, Jack Youngelson, Tina Nguyen ; written by Jack Youngelson and Daniel Gilbert ; directed by Jack Youngelson
a film by Byron Hurt ; produced, directed and written by Byron Hurt ; a co-production of God Bless the Child Productions and Independent Television Service (ITVS), in association with the National Black Programming Consortium
a True Vision production for WGBH/Frontline in association with BBC Television ; produced by Jezza Neumann, Lauren Mucciolo ; directed by Jezza Neumann