At first glance, the cinema would seem to be remote from the undercover world of the surreptitious observation of an unknowing and unwilling victim. What is seen of the screen is so manifestly shown. But the mass of mainstream film, and the conventions within which it has consciously evolved, portray a hermetically sealed world which unwinds magically, indifferent to the presence of the audience, producing for them a sense of separation and playing on their voyeuristic phantasy. Moreover, the extreme contrast between the darkness in the auditorium (which also isolates the spectators from one another) and the brilliance of.