How many movies have Marylin Fitoussi and Stéphane Bucher collaborated on?

They have worked on 4 movies together! Their first movie together was Colombiana (2011) while their highest rated movie together was Valerian and the City of a Thousand Planets (2017). They have not worked together since Valerian and the City of a Thousand Planets (2017). They are most known for their action films together.