Married to It (1991)

Director: Arthur Hiller
Cast: Beau Bridges, Cybill Shepherd, Don Francks, Donna Vivino, Mary Stuart Masterson, Robert Sean Leonard, Ron Silver, Stockard Channing

Synopsis:

Tale of three different couples (Yuppies, Hippies, and Society Folk) who find some common ground and become friends after being assigned to the same school project. Their lives are turned upside down by divorce, indictment, and sex but their friendship remains strong.