How many movies have Pierre Mertens and Raymond Fromont collaborated on?

They have worked on 2 movies together! Their first movie together was Le grand paysage d'Alexis Droeven (1990) while their highest rated movie together was Portrait of a Young Girl at the End of the 60s in Brussels (1994). They have not worked together since Portrait of a Young Girl at the End of the 60s in Brussels (1994).