This is a film composed entirely of frames of solid black and solid white, which Kubelka strings together in lengths as long as 24 frames and as short as a single frame. When he alternates between single black and white frames, a rapid flicker of motion-pictures projection; during the longer sections of darkness one waits in nervous anticipation for the flicker to return, without knowing precisely what form it will take. (Fred Camper) Arnulf Rainer, an architecture built in time by cinema uses only the four essential elements of the medium: light, darkness, sound and silence.