How many movies have Hermann Haller and Willy Krause collaborated on?

They have worked on 2 movies together! Their first movie together was The Minor's Wife ... Takes Her Pick (1972) while their highest rated movie together was Laß jucken Kumpel 2 - Das Bullenkloster (1973). They have not worked together since Laß jucken Kumpel 2 - Das Bullenkloster (1973).