How many movies have Friedl Behn-Grund and Lilli Palmer collaborated on?

They have worked on 4 movies together! Their first movie together was Anastasia: the Czar's Last Daughter (1956) while their highest rated movie together was The Glass Tower (1957). They have not worked together since Finden Sie, daß Constanze sich richtig verhält? (1962). They are most known for their drama films together.