How many movies have Roland Oehme and Thomas Neumann collaborated on?

They have worked on 3 movies together! Their first movie together was Ein irrer Duft von frischem Heu (1977) while their highest rated movie together was Einfach Blumen aufs Dach (1979). They have not worked together since Asta, mein Engelchen (1981). They are most known for their comedy films together.