How many movies have Donald Westerhuis and Henk de Vroom collaborated on?

They have worked on 3 movies together! Their first movie together was Van Muiswinkel & van Vleuten: Antiquariaat Oblomow (2005) and was their highest rated movie together. They have not worked together since Van Muiswinkel & van Vleuten: Mannen, Het Allerbeste! (2010). They are most known for their comedy films together.