How many movies have Herma Sandtner and Kurt Nachmann collaborated on?

They have worked on 3 movies together! Their first movie together was Lügen haben hübsche Beine (1956) while their highest rated movie together was Die unentschuldigte Stunde (1957). They have not worked together since Zwölf Mädchen und ein Mann (1959). They are most known for their comedy films together.