a Walter Reade / Sterling presentation ; presented by Victor Weingarten ; screenplay by Gerda Lerner, Carl Lerner ; produced by Julius Tannenbaum ; directed by Carl Lerner
a presentation of Films for the Humanities & Sciences ; written and produced by Paul Iacono ; executive producer, Frank Batavick ; Tranquilo Producciones ; producer, Fernanda Dominguez ; director, Pablo Garcia