How many movies have Herbert Taschner and Walter Boos collaborated on?

They have worked on 10 movies together! Their first movie together was The Resort Girls (1971) 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 13: Don't Forget Love During Sex (1980). They are most known for their comedy films together.