Vertigo

In one of the truly great later Hitchcocks, James Stewart plays the retired cop with a terror of heights who's hired by Tom Helmore to follow his suicidal wife, Kim Novak. Stewart falls in love with the enigmatic blonde but can't prevent her falling to her death. Some months later he spots a woman (also played by Novak) who bears an uncanny resemblance to the dead woman, and is drawn into a complex web of deceit. Novak gives her greatest performance, while the darker side of Stewart shatters his all-American Mr Nice Guy persona. A hallucinatory movie, of dreamlike revelations in its glistening San Francisco locations, it remains one of the most painful depictions of romantic fatalism in all of cinema.

Double identity thriller which has many sequences in Hitchcock's best style. A film as unsettling as the phobia it deals with, keeping its audience dizzy and off balance throughout.