All Night Long (1981 film)

All Night Long is a 1981 comedy film starring Barbra Streisand, Gene Hackman, Diane Ladd, Dennis Quaid, Kevin Dobson, and William Daniels, written by W. D. Richter and directed by JeanClaude Tramont.

Georges adult son, Freddie Dennis Quaid, is having an affair with an older, married woman, who also happens to be Freddies fourth cousin. George advises Freddie to stop the affair before it leads to any trouble, but Freddie declares that he might love her. One night at the store, George finally meets the woman, Cheryl Barbra Streisand, an untalented singersongwriter married to a volatile firefighter, Bobby Kevin Dobson, and she begins to show an interest in him. After a while, the interest is mutual.George goes to Cheryls house to return her cigarette lighter. She offers to show George the paint job Freddie has done in her bedroom. George and Cheryl are about to get intimate, when Freddie comes over to see Cheryl for another tryst. George escapes before Freddie could see him, but Cheryl decides to tell Freddie about the affair she is having with his dad. The next day, when George is trying to sleep, and his wife, Helen Diane Ladd, is having a French class, Freddie confronts his father, trying to fight him. Helen hears about the affair and George leaves. When she demands a divorce, George agrees. ........

Source: Wikipedia