The Other Side of Midnight (1977)

Although American WWII pilot Larry Douglas (John Beck) promises to marry French femme fatale Noelle Page (Marie-France Pisier), he instead returns Stateside and marries well-to-do Catherine Alexander (Susan Sarandon). And once Noelle takes a Greek multi-millionaire as a lover, she plots to shame Larry by arranging for him to be the tycoon's private pilot. But in one of many delicious twists of fate in this gripping tale of love, war and betrayal, Noelle and Larry again become passionate, and when Catherine refuses to divorce Larry, the cheating couple seek a murderous revenge.