'It only gets going at the end,' complained a teenager on the way out. Well yes, I suppose, but this under-directed hi-tech thriller hardly gets a real head of steam even then. Slackly handled by Irwin Winkler, who should be keeping it going like an express train from the start, the film is fashioned as a vehicle for sympathetic Sandra Bullock, a young computer expert who mends faults in systems but unwillingly becomes party to a conspiracy to take over the government and soon finds herself a target for half the bad guys in America. Again the makers of a (supposedly) high voltage thriller get an unknown Brit to play the villain - in this case Jeremy Northam as the hit-man who chooses to catch Bullock rather than dispatch her and spends the rest of the film trying to rectify his mistake. He effectively conveys menace, while Bullock does quite well with an underwritten part as the girl who finds her own identity snatched away from her as the baddies try to finish her off.