This film is a faithful adaption of the book, makes a welcome change. The two leads Burton and Bloom share a third star, that is London itself. For a feel of the greyness of London in this period, this film is tremendously evocative. It is a bleak story indeed but the two hours passes quickly, following the twists and turns but for me also following the striking filming. There is no way this should ever be in colour, it is a masterpiece and the ending, though I expected it, was as much of a shock as ever. It is a film of London when it truly was an old boy network, more so than now but also a London which was questioning and not afraid to do so. I could ramble on, but watch it. Don't expect James Bond, expect an intelligent and thought provoking story with filming that is almost art house. I kept thinking about the London of Hangover Square and Patrick Hamilton as I watched this. Unmissable.