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
an Invision Productions Limited production in association with Heights Productions, Inc. and WGBH Boston, with the assistance of Lion Television Limited ; series producer, William Cran
American Experience presents ; a Robert Stone Film ; WGBH Educational Foundation ; written, produced, and directed by Robert Stone ; co-produced by Alison Guss