How many movies have Jan Świderski and Janina Niedźwiecka collaborated on?

They have worked on 3 movies together! Their first movie together was Unvanquished City (1950) while their highest rated movie together was How I Unleashed World War II, Part II: Following the Arms (1970). They have not worked together since How I Unleashed World War II, Part II: Following the Arms (1970). They are most known for their drama films together.