"The Battleship Potemkin" I said, "The only thing I remember from Film Studies." "What about it?" "It was the film that presented the theory of Eisensteinian montage." The car swerves in the traffic. He is polite. "That sounds interesting". "The idea that if you put two things side by side a third meaning evolves out of them unseen." He looks in his rear view mirror. "That is interesting - multi-layered montage." "Invisible - from the Battleship Potemkin." All this from someone's bumper sticker. ...