An ultra rare 1957 U.S insert poster for Untamed Youth, an American raunchy rock ‘n’ roll rebellion musical drama directed by Howard W. Koch, and starring Mamie Van Doren and Lori Nelson as two starstruck sisters who are arrested for hitchhiking and skinny dipping. They are unfairly tried and sentenced to a Californian prison farm owned by the evil Russ Tropp (John Russell), who is secretly married to the judge. The sisters set out to expose Tropp's explotative practices.