T︠S︡entralʹnai︠a︡ kinostudii︠a︡ detskikh i i︠u︡nosheskikh filʹmov imeni M. Gorʹkogo ; st︠s︡enariĭ M. Volʹpina, N. Ėrdmana ; postanovka Aleksandra Rou ; rezhissër B. Kanevskiĭ
Collective Film Producers, Inc. ; an Edgar G. Ulmer production ; directors, Jacob Ben-Ami, Edgar G. Ulmer ; adaptation and dialogue, Peretz Hirshbein ; screenplay, George G. Moskov
a Mosfilm Cinema Concern production of a Mosfilm production ; produced and directed by Karen Shakhnazarov ; screenplay by Alexander Borodyansky and Karen Shakhnazarov
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