About the only law that I think relates to the genre [of horror] is that you should not try to explain, to find neat explanations for what happens, and that the object of the thing is to produce a sense of the uncanny. Freud in his essay on the uncanny wrote that the sense of the uncanny is the only emotion which is more powerfully expressed in art than in life, which I found very illuminating; it didn’t help writing the screen-play, but I think it’s an interesting insight into the genre. And I read an essay by the great master H.P. Lovecraft where he said that you should never attempt to explain what happens, as long as what happens stimulates people’s imagination, their sense of the uncanny, their sense of anxiety and fear. And as long as it doesn’t, within itself, have any obvious inner contradictions, it is just a matter of, as it were, building on the imagination (imaginary ideas, surprises, etc.), working in this area of feeling. I think also that the ingeniousness of a story like this is something which the audience ultimately enjoys; they obviously wonder as the story goes on what’s going to happen, and there’s a great satisfaction when it’s all over not having been able to have anticipated the major development of the story, and yet at the end not to feel that you have been fooled or swindled.

- Stanley Kubrick

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