How many movies have Peter Van De Velde and Sven Duym collaborated on?

They have worked on 4 movies together! Their first movie together was Piet Piraat en het Vliegende Schip (2006) while their highest rated movie together was Plop en de Kabouter Paashaas (2010). They have not worked together since Plop en de Kabouter Paashaas (2010). They are most known for their family films together.