How many movies have Joern Christian Novotny and Justus Hasenzahl collaborated on?

They have worked on 2 movies together! Their first movie together was Geheimnisvolle Freundinnen (2003) while their highest rated movie together was 2030 - Aufstand der Alten (2007). They have not worked together since 2030 - Aufstand der Alten (2007).