Come September

Come September is a 1961 romantic comedy film directed by Robert Mulligan, and starring Rock Hudson, Gina Lollobrigida, Sandra Dee and Bobby Darin.

Robert chaperones the girls on a sightseeing tour and to a music club. He dances with each of the girls and appeals to their virtues, stressing the importance of chastity. Trying to get Robert inebriated, the boys end up drunk themselves. Sandy revives Tony, but slaps him when he makes a pass at her. She then recounts the lecture received earlier to Lisa, who gets infuriated over Roberts double standards. The next morning, she leaves to get back together with Spencer. A soberedup Tony apologizes to Robert.Accompanied by Maurice, Robert chases after Lisa, but she refuses to take him back. Maurice decides to play matchmaker, telling the police that his employer is a notorious criminal wanted in Rome. He also tells them that Lisa is his accomplice. His plan fails though. When it is all straightened out, Lisa returns to her apartment, where she finds Sandy. Hearing the teens lament about lost love, she has an epiphany and leaves to take Robert back. On her way out, she meets Tony, whom she directs to her apartment, where he and Sandy reunite. ........

Source: Wikipedia