Burt Reynolds claimed "nobody knew how to sell the picture" and that resulted in its failure at the Box Office
Producer Saul David created and named the character of Berle Tanen in honor of then-MCA executives Berle Adams and Ned Tanen.
Edward Fox, years later after becoming famous, remembered this film as one of the toughest and most unhappy filming experiences of his career.
Based on the novel "You Shall Know Them" by the French novelist, Vercors. Vercors was the pseudonym for Jean-Marcel De Brullers.