Ricardinho: Sou Criança, Quero Viver (1968)

Ricardinho is a poor boy who works as a shoeshine boy to help his grandparents Norma and Alberto, and is constantly humiliated by the rich boy Robertinho. They have no idea that they are siblings, the children of Patrícia, who abandoned Ricardinho to marry the wealthy Dr. Miranda. She is the great love of Rodrigo's life.