Daybreakers trailer hits

Brothers Michael and Peter Spierig made an impressive debut with their home made zombie effort Undead a few years ago and since then they have been working hard on their first studio picture, the vampire action film Daybreakers. The story revolves around a world where vampires are the norm and humans are hunted for blood. Now comes a time where the blood supply is drying up as humans have become more harder to find. Blood substitute has been made but has some rather unfortunate effects on the vampires themselves so the need for the real thing is high on the priority list. Hilarity ensues.
A trailer has just hit the web over at Yahoo.com and I have to say that it looks pretty impressive, even though I'm not fond of the vampire genre in general. Take a gander and tell us what you think.