How many movies have Margrith Spitzer and Trude Herr collaborated on?

They have worked on 3 movies together! Their first movie together was … und du mein Schatz bleibst hier (1961) while their highest rated movie together was Im schwarzen Rössl (1961). They have not worked together since Sing, aber spiel nicht mit mir (1963). They are most known for their comedy films together.