How many movies have Dennis Mulder and Pieter Tiddens acted in together?

They have worked on 3 movies together! Their first movie together was Pieter Tiddens: Boos voor Beginners (2007) and was their highest rated movie together. They have not worked together since Pieter Tiddens: Vooruit! Nog Één Keer Kindercabaret, Nu Nog Anders! (2009). They are most known for their comedy films together.