Katie Holmes and Bailee Madison in Don't Be Afraid of the DarkDON'T BE AFRAID OF THE DARK

When a horror movie is really working, you tend to feel a tightening in the gut - a means of preventing you from audibly reacting to the intensity. When a horror movie is really not working, at least at the cineplex, you also tend to feel this clenching of the stomach muscles, but not because you're trying to avoid screaming. It's because you're trying to avoid laughing.