I think I first saw this one at the Astor in Melbourne back in 2002 or so. A breathless plot starring Sterling Heyden (he of the precious bodily fluids), classically rendered by Kubrick in black and white.
Documents the making of Apocalypse Now. Both share the same aesthetic, and this is as rivetting a trip as its counterpart. Amusingly, the original screenwriter, John Milius, went on to write and direct Conan the Barbarian and was entangled in the Dirty Harrys.