The Fire Within: A Requiem for Katia and Maurice Krafft

Werner Herzog made this documentary not as a biography, but as a celebration and showcase of the work of a French couple famed for their pioneering photography of volcanoes, a dangerous craft that ultimately cost them their lives. It's pleasingly unpretentious: we see excerpts from their (still stunning) work alongside a little casual footage of the film-makers themselves, while Herzog gives us a quiet commentary more from the perspective of a fan than that of an expert (though of course he knows something of what he is talking about). If there's a tragic dimension (did they keep taking risks because that was what, at the end of the day, they did) Herzog doesn't dwell on it. It might sound dull and pedestrian, but the stunning images keep you attached, and draw out your admiration for those who dared to film them.