What if... *looks around* those villagers are, like, normal people... and LEON is the Zombie. SHOCK AWE. j/k.
And about the trailer, who knows? Maybe it's later in the game, because all of the screens I have seen on the intern... I mean all the screens I found in my snappy new copy of Game Informer™©® have been during the daytime, and the trailers are at night. 3 discs eh? Noon, dusk, midnight, maybe?