Notice how the "restaurants" that the clown from Stephen King's "IT" used to advertise have gone all salad bar selection recently, well this horrifying but hugely entertaining documentary may well bear some responsibility. Curious as to why the population of America were so grossly overweight Morgan Spurlock declared himself a guinea pig and conducted a 30 day experiment that saw his diet consist entirely of McDonalds. The result of Spurlock's eating habits have to come close to some kind of consumer martyrdom, but even as the vomiting becomes more frequent, the health deteriorates, and the doctors monitoring him become increasingly concerned, the man himself retains a bon vivant that keeps, what is at its root almost an educational video, engrossing right up until the final bilious bite.