Arabesque

Not only is the whole cinematography clever (love those shots with actors in the mirrors) but this is one of those hidden gems from the '60s. The whole look and feel just oozes what you imagine the '60s to be--intrigue, mysterious/swarthy foreign spies, a totally cool/hot babe (Sophia Loren could not be any more gorgeous) and a handsome yet bumbling professor (Gregory Peck out harrison Ford-ing Harrison Ford years ahead of the curve). The dialog also sparkles with that old sort of Kate Hepburn--Cary Grant type interplay albeit at a much more languid and sexier pace. There are also hints of Hitchcock and Orson Welles in the story telling and directorial style.