Don't believe the hype on this one. It's by no means a bad film, and at times shines, but should it really get plaudits for the fact that it looks so damn slick, making London look icy cool in nearly all shots, but surely that's just style over substance, if your story gets muddled and uses all cop thriller clichés in the book.
James Macavoy is always one to watch, but here he seems a little too weedy to be a hardened vengeful cop, sometimes resembling a spoilt teenager having a tantrum, perhaps an older actor may have lent more weight to what amounts to a role of a burnt out cop on the edge.
Mark Strong as the career criminal he faces off against fares much better giving his villain a mix of real menace and a softer human side, that creates a believably flawed character, whose life of crime has resulted in his sons death, setting up the plot for cop and criminal to come on a collision course.
In terms of story and style the look is a mixture of John Woo (the gun shoot outs) and the director must surly have been influenced by Michael Mann (Heat, Miami Vice) to some point.
The action scenes (mostly gun shoot outs) are well done, stylish and like the rest of the film slick.
So in short not a bad film, looks good, some good scenes, with the odd twist, good cast, but let down by a generic cop verses criminal plot that's been done slightly better elsewhere in dozens of better thrillers.