How many movies have Günter Neumann and Horst Tappert collaborated on?

They have worked on 4 movies together! Their first movie together was Aren't We Wonderful (1958) while their highest rated movie together was Der Engel, der seine Harfe versetzte (1959). They have not worked together since Snow White and the Seven Jugglers (1962). They are most known for their comedy films together.