What is a “documentary” ? A singular look on the world, on reality. Any film, any work, offers a vision of the world, whether through fiction or not. Moreover, some documentaries include fiction, and vice versa. So why differentiate these two forms of cinema ? Perhaps simply to clarify what the audience should expect from the film : the proposal to live a dream in an imaginary, or the proposal to discover unknown parts of the world, as revealed by a unique look.