The documentary footage is undeniably strong but this is really an example of how not to make an art film. The cutting and camera movements impose an interpretation on the images and make it more or less impossible for the viewer too assess their significance. John Berger once did an excellent parody of this kiond of film making when he demonstrated how a Caravaggio painting could be made to appear as a reverantly spiritual image or a lively comedy depending on choice of background music and editing.