"A stylized version of our IKEA present. It is talking about very simple concepts. We're designed to be hunters and we're in a society of shopping. There's nothing to kill anymore, there's nothing to fight, nothing to overcome, nothing to explore. In that societal emasculation this everyman is created. We wanted a title sequence that started in the fear center of the brain. [When you hear] the sound of a gun being cocked that's in your mouth, the part of you brain that gets everything going, that realizes that you are fucked - we see all the thought processes, we see the synapses firing, we see the chemical electrical impulses that are the call to arms. And we wanted to sort of follow that out. Because the movie is about thought, it's about how this guy thinks. And it's from his point of view, solely. So I liked the idea of starting a movie from thought, from the beginning of the first fear impulse that went, Oh shit, I'm fucked, how did I get here?"