While it’s hard to imagine how much Flesh Gordon was something of a UFO in the 70’s underground film landscape, this excellent documentary will put it into context, inviting us to discover the secrets behind the myth, and finally clarify the rumours about a hypothetical pornographic version. But Christian Genzel’s work goes beyond the simple retrospective making-off by taking as a guiding theme the career of director Howard Ziehm. In front of the camera, the one who revolutionised adult films by adding screenplays, looks back to a time that is now past, making us discover a whole part of the history of cinema too often despised.