How many movies have Günther Heller and Rosl Mayr collaborated on?

They have worked on 12 movies together! Their first movie together was Sex in the Office (1971) while their highest rated movie together was Bedtime Stories for Grownups (1974). They have not worked together since Schoolgirl Report Part 13: Don't Forget Love During Sex (1980). They are most known for their drama films together.