How many movies have Kirsten Passer and Leo Randrup Knudsen acted in together?

They have worked on 4 movies together! Their first movie together was Father of Four: And Uncle Sofus (1957) while their highest rated movie together was Father of Four and the Wolf Cubs (1958). They have not worked together since Father of Four: The Whole Shebang (1961). They are most known for their family films together.