How cool is this? With our favorite holiday quickly creeping up on us, YouTuber Leon B has uploaded what is arguably the greatest slasher of all time in a special extended version. I'm talking the film that inspired a franchise…that launched a million nightmares…that introduced the boogeyman known as The Shape to the world. Yes, today's Cool Horror Video is John Carpenter's 1978 classic HALLOWEEN. Better act quick, though…this one might not be up long.