The large underclass of unemployed beggars and riffraff required government and private charity to survive. The riffraff expose the Amancio brothers and battle them to prevent the mutiny. Riffraff is a 1936 American film starring Jean Harlow and Spencer Tracy. He was in a thriller, "Riffraff" (1947) and another biopic "Fighting Father Dunne" (1948). He made his debut on the feature film RiffRaff with co-star Robert Belushi. "Riffraff" (1936) put Tracy opposite Jean Harlow. The kids meet "riffraff", or the lowest of the low, including Ricardo, Francisco, and Daniel. The kids meets "riffraff", or the lowest of the low, including Ricardo, Francisco, and Daniel.