How many movies have Marie von Bülow and Willy Hameister collaborated on?

They have worked on 2 movies together! Their first movie together was Ein Ausgestoßener, 2. Teil: Der ewige Friede (1915) and was their highest rated movie together. They have not worked together since Der Weg, der zur Verdammnis führt, 2. Teil - Hyänen der Lust (1919).