Desc: Fluen på væggen: Directed by Poul Martinsen. With Tom Belsø, Wilson Kipketer, Poul Martinsen. For all directors making documentaries it's a dream to become the 'fly on the wall' - that is to completely blend in with the surroundings while filming everything. Poul Martinsen is one of few documentarists who throughout his career has gotten this close to people. Maybe even too close. Here he discusses the dilemma, revisit past documentaries and interviews some of the people he portrayed.