How many movies have Erich Petraschk and Willi Schrade acted in together?

They have worked on 4 movies together! Their first movie together was Der Leutnant vom Schwanenkietz (1974) while their highest rated movie together was Visa für Ocantros (1974). They have not worked together since Verlobung in Hullerbusch (1979). They are most known for their drama films together.