Taking Off (1971)
Taking Off is a 1971 music movie directed by Miloš Forman, with a running time of 1h 33m. It stars Lynn Carlin, Buck Henry and Georgia Engel.
Unable to deal with her parents, Jeannie Tyne runs away from home. Larry and Lynn Tyne search for her, and in the process meet other people whose children ran away. With their children gone, the parents are now free to rediscover/enjoy life.