It does manage to capture an authentic 'grey' London of the '70s/80s, much how I remember it. Before it turned into a giant wanker's theme park.
Haven't watched many films lately, Pod's been busy and I've been playing 'The Last Of Us'. That game's got better acting than most of the films we've seen since doing this nonsense. The story is nothing original, at all, but everything else nails it. Bleak, amoral survivalist ultraviolence has never been so enjoyable. Well worth a go if you like games.