How many movies have Gert Wilden and Klaus Werner collaborated on?

They have worked on 14 movies together! Their first movie together was Madame and Her Niece (1969) while their highest rated movie together was Schoolgirl Report Part 5: What All Parents Should Know (1973). They have not worked together since Schoolgirl Report Part 12: If Mom Only Knew... (1978). They are most known for their drama films together.