What a film demands from a viewer varies a great deal. Often not much is demanded. Keeping the characters straight, remembering what has happened, and following the plot are usually enough for much commercial cinema to “work,” to make sense and entertain. We easily accept the illusion that we are watching a fictional cinematic world in which we are not present or detectable, and we allow ourselves to imagine that we are watching, unobserved, what simply happens in that world. We can occasionally notice that an actor is doing a fine job or that a director has edited a sequence in a confusing way, but if that happens too frequently something is going wrong. Things are going well when we are absorbed in the depicted world, not attending to the world as filmed; that is, when we attend to the filmed world, not to the film world, the world of the actors, the sets, the music, the directorial decisions.