If all you know about Poltergeist is the little girl sitting in front of the TV and crooning “they’re heeeere,” you owe it to yourself to see the whole movie: It’s more than a MAD Magazine joke. Poltergeist pulls off the ultimate horror movie trick — while you’re watching it, you almost manage to forget that it’s a horror movie. It’s a funny, touching story about some parents exploring a new little wrinkle in their lives. Until, almost before you recognize what’s happening, a monster comes. And now the characters you shared joy and humor with must do battle with unknowable evil. The original tagline for Poltergeist was “it knows what scares you.” And it truly does.