Very ordinary indeed. There is almost nothing to separate this film from dozens of similar capers. There are bits of sophisticated dialogue and phlegmatic humor, but most of the time the film comes off as a poor imitation of its superior predecessors (Hitchcock's "To Catch A Thief" comes to mind). Unfortunately, director Don Siegel is not in top form and the film often feels too low-key and lacks energy. But Reynolds's charm is at its zenith here, and his pretty good byplay with David Niven provides some funny moments.
