How many movies have Günther Maria Halmer and Roman Knižka acted in together?

They have worked on 4 movies together! Their first movie together was Bauernprinzessin I (2004) while their highest rated movie together was Bauernprinzessin III - In der Zwickmühle (2009). They have not worked together since Max und die wilde 7 (2020). They are most known for their drama films together.