How many movies have Friedrich von Thun and Michael Verhoeven collaborated on?

They have worked on 10 movies together! Their first movie together was Lausbubengeschichten (1964) while their highest rated movie together was Onkel Filser - Allerneueste Lausbubengeschichten (1966). They have not worked together since Ignaz Semmelweis - Arzt der Frauen (1994). They are most known for their drama films together.