WGBH Educational Foundation ; a Canadian Broadcasting Corporation production for WGBH/FRONTLINE ; producer, Lisa Ellenwood ; written, produced & directed by Neil Docherty
produced by Michael Kirk ; produced and reported by Jim Gilmore ; written and directed by Michael Kirk ; a Frontline co-production with Kirk Documentary Group, Ltd. ; WGBH Educational Foundation ; WGBH Boston
a Frontline co-production with Kirk Documentary Group, Ltd. ; a production of WGBH-TV Boston ; produced by Michael Kirk, Jim Gilmore, Mike Wiser ; written and directed by Michael Kirk
presented by Zeitgeist Films ; written, produced and directed by Sue Williams ; Ambrica Productions in association with WGBH Boston and Channel 4 Television UK
a series by Ambrica Productions in association with WGBH Boston and Channel 4 Television UK ; executive producer, Judith Vecchione ; written produced and directed by Sue Williams