So I started reading a book (the one they basd the film on) about the Zodiac murders and the first thing that popped into my head was wouldn't it be creepy if the guy who wrote the book was really the Zodiac killer. After all nobody knows who the guy was. I haven't got very fair into the book so I'm guessing it wouldn't be possable for that to be true but still the thought lingers in the back of my mind.