#9 - 28 Days Later
There's always been a bit of confusion over just what sub-genre of horror this movie fits into, it seems to me. Some people seem to think that it should be classed as a zombie movie, despite there not being any living dead shambling around the place, while a couple of people even compared it to Day of the Triffids when it first came out, which is a stretch at the best of times.
The best sub-genre it fits into, in my oh-so-humble opinion, is post-apocalyptic horror.
So, Cillian Murphy wakes up naked in a deserted London hospital with no idea of what's going on. As it turns out, while he's been sleeping Britain's been ravaged by a virus which leaves people with weird red eyes and in a permanent state of rage, and he's one of the very few people left uninfected. So as you'd expect he teams up with the few other survivors he meets and sets out to find a safe place to hide out in, dodging all their various enemies along the way.
For me, the scenes of the deserted London (and other parts of the UK) were what made the film, because having seen them myself under 'normal' circumstances makes their looted, post-rioted and utterly empty scenes even more shocking...