How many movies have Alwyn van den Heever and Bertha Spieker collaborated on?

They have worked on 3 movies together! Their first movie together was 30 Karat Liebe (2009) while their highest rated movie together was Northmen: A Viking Saga (2014). They have not worked together since Jana und der Buschpilot - Einsame Entscheidung (2015). They are most known for their drama films together.