David Lynch is not widely considered to be a horror director. He’s generally categorized as an art-film director, a surrealist. His movies capture the lyricism and the bizarre, vague symbolism to be found otherwise only in dreams. But when you’re dreaming, it’s not always a restful experience. Sometimes your dreams are more like nightmares. And few directors are as effective at conjuring the experience of nightmares onscreen as David Lynch is.