How many movies have Charlotte Müllner and Lieselotte Plauensteiner collaborated on?

They have worked on 3 movies together! Their first movie together was Borderline (1988) while their highest rated movie together was Black Flamingos - Sie lieben euch zu Tode (1998). They have not worked together since Black Flamingos - Sie lieben euch zu Tode (1998). They are most known for their drama films together.