<rant>
This movie sucks so bad you can use the video tape (which cannot be a long time away) as a vacuum cleaner! Everyone involved with this movie should be forced to pay compensation to anyone who has been duped into seeing it. The way I see it, Fox Searchlight (the distributor) owes me at least $50 for watching this horrible (not to be confused with horror!) movie. Anyone who thinks this movie is scary, really should get out more. This movie is more proof that so-called movie critics don't know sh!t and that "art" movies should be avoided at all cost, unless you are being paid to see them.
The director should never be allowed to make another movie. I cannot believe this is the guy who did Trainspotting! The streets of London were cleared out for the apocalyptic scenes (a-la Vanilla Sky). Which would have worked fine, except that the whole movie is shot in a gritty, low-frame-rate, under-colored style that is more reminiscent of a my-first-camera movie than a major release, and almost guaranteed to give you epileptic seizures.
The story leave a whole lot of questions to be answered. For example: What the f*ck is he doing shouting "HELLO!" in London for 15 min? If the whole population is infected, where the f*ck are they? If you are being attacked by hordes of unthinking hordes of bloodthirsty zombies, wouldn't you go and get "tooled up" with something better than a baseball bat (in a country where the population has allowed itself to be effectively neutered by its politicians: apparently not). Why the f*ck are they walking everywhere?
As far as the acting goes, it would have helped if the viewer actually cared about the characters. There is not enough action to make up for the lack of character development. The slow bits are really, really slow. The story is a neat concept, but developed extraordinarily badly. No amount of willing suspension of disbelief will fix this one.
If you are still considering seeing this movie, consider this: take seven one-dollar bills and light them on fire one by one. That will give you much more entertainment and it won't take nearly as long. Watch bad TV with the time you save. At least you can change the channel without having to leave the room!
Expect to see more of this movie: at the Razzies!
</rant>