Supposedly Hitchcockian thriller (probably because of the resemblance between the youthful killers and their counterparts in Rope) but this is very predictable stuff. It lacks drama and Sandra Bullock's character is a walking cliche.
Very by-the-book thriller. Sandra Bullock and Ryan Gosling both have done much better in their careers than this standard pot-boiler. If you're big fans, check it out, otherwise there's not much else to recommend here.