How many movies have Herbert Taschner and Wolf Harnisch collaborated on?

They have worked on 3 movies together! Their first movie together was The Resort Girls (1971) while their highest rated movie together was Schoolgirl Report Part 12: If Mom Only Knew... (1978). They have not worked together since Schoolgirl Report Part 12: If Mom Only Knew... (1978). They are most known for their comedy films together.