How many movies have Robin Müller and Wouter Dierickx collaborated on?

They have worked on 3 movies together! Their first movie together was Kleines Arschloch - Der Film (1997) while their highest rated movie together was Werner - Gekotzt wird später! (2003). They have not worked together since Derrick - Die Pflicht ruft! (2004). They are most known for their comedy films together.