How many movies have Heinz Conrads and Kurt Nachmann collaborated on?

They have worked on 5 movies together! Their first movie together was Roter Mohn (1956) while their highest rated movie together was Vier Mädels aus der Wachau (1957). They have not worked together since Hoch klingt der Radetzkymarsch (1958). They are most known for their comedy films together.