Brilliant concept, poor execution.
The idea that in the future most of the population has become vampires and they are running out of blood is pretty cool It was so cool in fact that the movie spent an hour setting up that scenario and in the process, I got very bored. I think I may have dozed off a couple times.
The last 20 minutes or so were pretty cool if not predictable. Willem Dafoe was great being…well…Willem Dafoe but I aside from that, eh.
This actually would have made a pretty good book or comic.