The two stars are attractive, but neither is particularly suited to this sort of thing. Kidman's Dr. Julia Kelly is acting head of the White House Nuclear Smuggling Group, and the actor's version of what such high-falutin' professionalism means plays to her major weakness. She comes off as a testy know-it-all. Kidman has an aloof, cerebral quality on screen; she'll never be a major-scale star. Her qualities can work quite effectively in certain material, but this isn't it. Similarly, the laconic Clooney is an actor whose low-key, pensive good looks require the camera to come to him. Here, constantly on the run -- and unlike his work on television's ER -- he has few opportunities to pull viewers in to his low-key appeal.