How many movies have Erik van Muiswinkel and Wilma Hoornstra collaborated on?

They have worked on 1 movie 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: Antiquariaat Oblomow (2005).