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

They have worked on 2 movies together! Their first movie together was Millowitsch-Theater - Das Glücksmädel (1984) and was their highest rated movie together. They have not worked together since Millowitsch Theater - Tante Jutta aus Kalkutta (1990).