How many movies have Bart van Leemputten and Dirk Bosschaert collaborated on?

They have worked on 6 movies together! Their first movie together was Piet Piraat en de Betoverde Kroon (2005) while their highest rated movie together was Piet Piraat en het Schotse Spook (2009). They have not worked together since Piet Piraat en het Zeemonster (2013). They are most known for their family films together.