How many movies have Heidi Mahler and Helga Stumpf collaborated on?

They have worked on 3 movies together! Their first movie together was Ohnsorg-Theater - Der schönste Mann von der Reeperbahn (1974) and was their highest rated movie together. They have not worked together since Ohnsorg-Theater - Die Venus von Müggensack (1977). They are most known for their comedy films together.