I wanted to track down the fundamental difference between the photograph and the film. Contrary to what one imagined the photograph doesn't express movement; on the contrary, it arrests it. And the more one increases the speed of the shutter the more definitive is the stoppage... It's here that photography pushes us out of the ordinary range of human perception towards the scientific domain. I've often thought that photography was closer to sculpture than to music, because sculpture also arrests movement... On the other hand the cinema is movement itself; no picture subsists all by itself, but as a function of the one just before and the one behind. In this sense the greatest enemy of the real cinema is the ability to make marvelous photographs as, say, the Mexicans do. My own little film is all movement, and in order to underline the sovereignty of movement, I cut out all words, all commentary. A little music to accompany the movement of the animals, that was all. I even went so far as to prevent myself consciously from trying to 'compose' beautiful photographs; I snuffed out the still photographer in myself in remembering that the cinema is movement.