Well, the film has been reviewed a lot already. A full on action movie that disturbs as much as it gets the adrenaline pounding, the US charge in gung-ho and things rapidly go bad. From there it is a downward spiral into disaster. Worth watching but don't think you are going to come away from the film with a smile on your face.
As for the quality of the blu-ray disc. The audio is very good, though not DTS, only 5.1 (and also uncompressed 5.1 - for which I need an HDMI connector on my amp which I don't have unfortunately)
The visual quality is good. The way the film is shot means that many of the scenes (most of them) are grainy, so frankly you are not going to get the benefit of HD in many of them. I can recall only a couple of scenes where I knew I was watching BluRay, the rest of the film could just as well have been an upscaled DVD. Having said that the colour palette was very rich and vibrant. I am surprised at a few of the reviews saying that this is a film to show off HD. It is good but not the best for HD I have seen.
I have a Sony D3500 40inch TV playing from a PS3 and have been wowed by other Blu Ray films, notably Starship Troopers (in the digitally rendered scenes).
Overall, a good, exciting but depressing film, with a good Blu Ray transfer. Worth getting if you don't have the film on DVD already.