Morad and Laleh(1965)

A little brother and sister lose their parents in an accident. Then the brother and sister lose each other. A wealthy family adopts the girl, and the boy meets an old wanderer. The old man sees the girl and takes her brother to her, but the girl is about to travel with her adoptive parents. The old man and the boy go to the airport, and at the last moment, the sister and brother find each other. From then on, they both live together in the wealthy man's family.