A lot of perfectly good film show their cards early, establish a unique premise and let the audience explore a topic at a leisurely pace, without much in terms of surprise. this film is not one of those films.

While it doesn't offer any answers, it both thrills and makes you think.

It is an exhilarating, distressing, funny and profound film, with one of the more memorable film scores in years,

While it is a pity that the story wasn't told with more visual finesse, this is trivial compared to our real-world problems. It takes a good movie to put that into perspective.