Dziga Vertov, the wizard of agitprop, once proclaimed, "I decipher in a new way the world unknown to you." The director's landmark "documentary," Man with a Movie Camera, is celluloid proof of his methods. An index of experimental film techniques, Man employs canted angles, double exposures, split screens, and varied film speeds (among other hit-and-run manipulations) to record a frenetic day in a society that operates according to the futurist phrase "In Machines We Trust." Shot without title cards, sets, or actors to approximate "life as is," Vertov's on-the-fly masterpiece remains an exhilarating and dizzying achievement for a Russian maverick whose pseudonym translates to "spinning top."