How many movies have Gert Verhulst and Kathleen Aerts collaborated on?

They have worked on 8 movies together! Their first movie together was Studio 100 Sprookjes Musicals - Doornroosje met K3 (2002) while their highest rated movie together was K3 Musical: De 3 Biggetjes (2003). They have not worked together since K3 and the Cat Prince (2007). They are most known for their family films together.