Unfaithful is a 2002 American erotic thriller film directed and produced by Adrian Lyne and starring Richard Gere, Diane Lane, Olivier Martinez, Erik Per Sullivan, Chad Lowe, and Dominic Chianese. It was adapted by Alvin Sargent and William Broyles Jr. from the 1969 French film The Unfaithful Wife. It tells the story of a couple living in suburban New York City whose marriage goes dangerously awry when the wife indulges in an affair with a stranger she encounters by chance.
