How many movies have Józef Drzewicki and Ludgierd Romanis collaborated on?

They have worked on 9 movies together! Their first movie together was Rachunek sumienia (1964) while their highest rated movie together was How I Unleashed World War II, Part III: Among Friends (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 comedy films together.