Paranormal Activity (out Dec 3) is a legitimately scary horror flick (a rarity I know). Shot for just $150k, it centres on a couple who hear strange noises in their house at night. They buy a video camera and leave it on while they sleep to see if there's anything peculiar. Whilst I'm pretty desensitized to such things, a shiver went down my spine on more than one occasion. You must see this. Grade: A-.