The box is just like The Body Snatchers, crossed Close Encounters of the Third Kind! Mr Steward is like a Bond villian with Xmen mutant abillities, as if dealing with the ciggerate man in the X-files. (just wrote a review on the Box just then, if you want to check it out) but i believe Paranormal Activity beats the lot, it reminded me of watching, "Blair Witch Project" but a whole lot better. I think Paranormal Activity is based on a true story.
When a group of people stayed in a so called, "Haunted House" for a night, and at a certain time 4 people witnessed one of their comrades being pushed up a wall by an invisible force. Afterwards they were condemmed to a mental aslylum, even though they don't have any past mental record.