The Impossible Years is a 1965 comedy play and a 1968 movie, based on the play.The play was written by Robert Fisher and Arthur Marx, son of famed comedian Groucho Marx. After two previews, the Broadway production, directed by Arthur Storch, opened on October 13, 1965 at the Playhouse Theatre, where it ran for 670 performances. The original cast included Alan King, Sudie Bond, Bert Convy, Neva Small, and Scott Glenn. Sam Levene and Ed McMahon succeeded King later in the run.