I saw this movie on tv a few years ago. It was about two young adopted children, a dutch boy and a girl from Java who survived the 1953 flood of the Netherlands when their adoptive father put them in a church bell tower. They climbed out of the tower the next morning into a boat and then to the houseboat of an adult friend (who perished in the flood). Eventually they were “rescued” by adults, one of whom always called the little girl “Queen of Sheba” and taken far from home. There are scenes of flood destruction and floating bodies. They finally return to their village and are reunited with their adoptive father, the church organist. The film is in English. I can’t recall if it was in color or black and white.