by Edgar Reitz ; [presented by] WGBH Boston ; written by Edgar Reitz and Peter Steinbach ; Regie, Edgar Reitz ; hergestellt von Edgar Reitz Filmproduktionsgesellschaft in Coproduktion mit dem SFB und dem WDR
filmed, produced and directed by Marcel Mettelsiefen ; co-produced and edited by Stephen Ellis, A.C.E. ; senior producer, Dan Edge ; an ITN production for WGBH/Frontline in association with Channel 4 and ZDF