Charlie and a Half (1974)

Charlie passes himself off as a rich businessman but gets by through fleecing suckers with 3-Card Monte. Miko is a street kid who spends his time with Charlie instead of going to school; his sister unsuccessfully tries to raise him on her own. The plot follows Charlie's attempts to conquer the heart of Gila, a rich girl whose parents are trying to get her married to an American millionaire, something she doesn't want.