We are comfortably in the same perspective as Harrison Ford's protagonist.
Through a leisurely exposition between a happily married doctor and wife on a business trip in Paris, Polanski's camera at some stage begins to tell us things through ominous zoom-ins and steadicams. We see him thinking, wondering when he should start worrying. We are comfortably in the same perspective as Harrison Ford's protagonist. The hero's essential obstacle being that he's a fish out of water, an American businessman in Paris who speaks no French and thus can hardly navigate his way through the city, much less a trail to his wife in which time is of the essence. Not to mention, Polanski echoes Hitchcock’s famously strong visual use of famous landmarks.