How many movies have Barbie Millowitsch-Steinhaus and Mariele Millowitsch acted in together?

They have worked on 8 movies together! Their first movie together was Millowitsch-Theater - Das Glücksmädel (1984) while their highest rated movie together was Millowitsch Theater - Die spanische Fliege (1986). They have not worked together since Millowitsch Theater - Die vertagte Hochzeitsnacht (1988). They are most known for their comedy films together.