Dangerous Years (1947) - Marilyn had a minor role as Evie, a waitress at a juke joint called the Gopher Hole.
Jeff Carter has put an end to the town's delinquency with a boys' club. Young hoodlum Danny shows up and influences teenagers Doris, Willy and Leo. They hang out at a juke joint where Eve (one of Marilyn's first bit parts) works. When Jeff tries to stop a robbery planned by Danny, he is killed and Danny goes on trial.