How many movies have Karlheinz Hackl and Xaver Schwarzenberger collaborated on?

They have worked on 3 movies together! Their first movie together was Ein anderer Liebhaber (1990) while their highest rated movie together was Die Verführerin Adele Spitzeder (2012). They have not worked together since Die Verführerin Adele Spitzeder (2012). They are most known for their drama films together.