a Robert Kenner Films production for The American Experience ; WGBH Educational Foundation ; WGBH Boston ; produced and directed by Robert Kenner ; written by Ken Chowder ; executive producer, Margaret Drain
a production of WGBH Boston and WITF, Harrisburg; produced by Beth Hager and Randall MacLowry ; written by Ken Emerson and Randall MacLowry ; director, Randall MacLowry
Frixos Constantine presents an Anglo-Soviet co-production by Poseidon Productions Ltd., England, Sovietfilm and Mosfilm, U.S.S.R ; written and directed by Emil Lotianou ; Western version supervised by Michael Powell
ein Film der DEFA Studio für Spielfilme ; Gruppe roter Kreis ; Buch, Gojko Mitić, Gottfried Kolditz ; Produktionsleitung, Dorothea Hilebrandt ; Regie, Gottfried Kolditz