How many movies have Bart van Leemputten and Marc Van Acker collaborated on?

They have worked on 4 movies together! Their first movie together was Plop and the Gnome Baby (2009) while their highest rated movie together was K3 Dierenhotel (2014). They have not worked together since K3 Dierenhotel (2014). They are most known for their family films together.