How many movies have Gunther Möhner and Ruth Küllenberg acted in together?

They have worked on 3 movies together! Their first movie together was Schoolgirl Report Part 1: What Parents Don't Think Is Possible (1970) while their highest rated movie together was Sex Clinic '74 (1973). They have not worked together since Sex Clinic '74 (1973). They are most known for their drama films together.