The Guilty Generation (1931)

John Smith is a young architect who changed his name from Marco Ricca when he realized that being a notorious bootlegger's son was not likely to help his career. Maria Palmiero's father is also a bootlegger, and she's finding that the high society circles she wants to move in are not very welcoming to her. Naturally, John and Maria's fathers are waging a brutal gang war back in New York, and naturally John and Maria fall in love. The premise mirrors that of "Romeo and Juliet," but the plot doesn't, although the bodies do pile up.