How many movies have Ivo Palmen and Jacob 's-Gravesande collaborated on?

They have worked on 4 movies together! Their first movie together was Ronald Goedemondt: Spek (2006) while their highest rated movie together was Theo Maassen: Tegen beter weten in (2006). They have not worked together since Theo Maassen: Zonder Pardon (2009). They are most known for their comedy films together.