How many movies have Franz Seitz Junior and Werner Jacobs collaborated on?

They have worked on 9 movies together! Their first movie together was Tante Frieda - Neue Lausbubengeschichten (1965) while their highest rated movie together was Onkel Filser - Allerneueste Lausbubengeschichten (1966). They have not worked together since The Flying Classroom (1973). They are most known for their comedy films together.