Vertigo 5

Easily in my top ten of all time. This film is so brilliant that it's hard for me to do it justice. It essentially has two parts: the first is as suspenseful as any Hitchcock story, but it's topped by the second segment, which is probably the creepiest, most uncanny hour ever recorded on film. The first story, about an ex-cop who has to deal with a fear of heights -- in, appropriately enough, San Francisco -- is really a tease that gets you into the second half, in which that man becomes the weirdest incarnation of masculinity you'll ever see. Far scarier and more engrossing than any horror film I've ever seen. Trust me, you'll never forget it, especially if you're a guy who's ever loved a woman.