How many movies have Martijn van Nellestijn and Ruben Sluijter collaborated on?

They have worked on 5 movies together! Their first movie together was Sinterklaas en het geheim van het Grote Boek (2008) and was their highest rated movie together. They have not worked together since Sinterklaas en de Pepernoten Chaos (2013). They are most known for their family films together.