How many movies have Ruut Weissman and Sieuwert Zwaagstra collaborated on?

They have worked on 3 movies together! Their first movie together was Droog Brood: Teer (2003) while their highest rated movie together was Droog Brood: Scènes voor de Mensen (2005). They have not worked together since Droog Brood: Omwille van de Smeer (2008). They are most known for their comedy films together.