How many movies have Arnfried Heyne and Fritz Muliar collaborated on?

They have worked on 7 movies together! Their first movie together was Symphonie in Gold (1956) while their highest rated movie together was … und du mein Schatz bleibst hier (1961). They have not worked together since Mein Vater, der Affe und ich (1971). They are most known for their comedy films together.