"One workday, while we were waiting to shoot, Roman [Polanski] was discoursing about the impossibility of long-term monogamy given the brevity of a man's sexual attraction to any woman. An impassioned John Cassavetes responded that Roman knew nothing about women, or relationships, and that he, John, was more attracted than ever to his wife, Gena Rowlands. Roman stared at him and blinked a few times, and for once had no reply."