A pretty good film: Clive Owen can be terrible, but given the right role he can be great, cases in point are this and Closer. This puts a nice twist on the Dystopian themes, but also with that element of hope at the end which is absent from a great deal of futuristic visions (e.g. 1984, Blade Runner). The psudo-documentary style of shooting is also effective, as it is in Paul Greengrass's films, and Alphonso Cuaron is one of the more exciting directors in Hollywood at the moment. A good film, not flawless, but good.