One Stays, the Other Leaves (2005)

Name: One Stays, the Other Leaves
Genre: Comedy, Drama
Released: 2005-01-12
Duration: 109 min
Cast: Daniel Auteuil, Miou-Miou, Charlotte Gainsbourg, Pierre Arditi, Laure Duthilleul

A story about two couples, longtime friends in which both husbands engage in long-term affairs and, as the title says, ultimately one remains with his wife and one makes a new life with another woman.