Mob Girl (1970)

The film follows Arlyne Brickman, who grows up among racketeers on the Lower East Side of New York City where she’s drawn to the glamorous and flashy lifestyle of New York mobsters. Soon after, she begins dating “wiseguys” and running errands for them, before getting in on the action herself — eventually becoming a police informant and a major witness in the government’s case against the Colombo crime family.