a Frontline production with Kirk Documentary Group ; produced by Michael Kirk, Jim Gilmore, Mike Wiser ; written by Michael Kirk & Mike Wiser ; directed by Michael Kirk
produced and directed by Center City Film & Video ; Andrew Schlessinger, executive producer ; Damon Alberts, producer ; Brian Isely, director ; Glen Zeigler, Melissa Rapine, associate producers ; Henry D. Abraham, Jim Starr, scriptwriters
produced by Paradigm Pictures in association with the Canadian Broadcasting Corporation ; produced and directed by Marrin Canell and Ted Remerowski ; written by Ted Remerowski
National Geographic Documentary Films presents ; a RadicalMedia production in partnership with Bloomberg Philanthropies ; directed by Sidney Beaumont, Michael Bonfiglio ; produced by Sidney Beaumont