Well filmed, dark and utterly captivating, Nightmare is one film that’s hard to fit into a specific mold. Is it a Christmas film or a Halloween film? Is it suitable for kids or only for adults, given its dark themes and style? Truth be told, it doesn’t really matter, since the film remains an essential watch whenever Christmas comes around. Superlative animation techniques, great music from Danny Elfman, and a kooky, elaborate story from Tim Burton, make this film a genuine, bona fide classic.