Film History in a Second - 'The Vertigo Effect'

Vertigo is a 1958 American psychological thriller film directed and produced by Alfred Hitchcock. The story was based on the 1954 novel D'entre les morts by Boileau-Narcejac. The screenplay was written by Alec Coppel and Samuel A. Taylor.

The film stars James Stewart as former police detective John "Scottie" Ferguson. Scottie is forced into early retirement because an incident in the line of duty has caused him to develop acrophobia (an extreme fear of heights) and vertigo (a sensation of false, rotational movement). Scottie is hired by an acquaintance, Gavin Elster, as a private investigator to follow Gavin's wife Madeleine (Kim Novak), who is behaving strangely.

The film was shot on location in San Francisco, California, and at Paramount Studios in Hollywood. It is the first film to utilize the dolly zoom, an in-camera effect that distorts perspective to create disorientation, to convey Scottie's acrophobia. As a result of its use in this film, the effect is often referred to as "the Vertigo effect". The effect was first conceived and patented by Romanian Director of Photography Sergiu Huzum, but was first used by Irmin Roberts, Vertigo's second-unit cameraman.

The effect is achieved by zooming a zoom lens to adjust the angle of view (often referred to as field of view or FOV) while the camera dollies (moves) toward or away from the subject in such a way as to keep the subject the same size in the frame throughout. In its classic form, the camera angle is pulled away from a subject while the lens zooms in, or vice versa. Thus, during the zoom, there is a continuous perspective distortion, the most directly noticeable feature being that the background appears to change size relative to the subject.

The visual appearance for the viewer is that either the background suddenly grows in size and detail and overwhelms the foreground, or the foreground becomes immense and dominates its previous setting, depending on which way the dolly zoom is executed. As the human visual system uses both size and perspective cues to judge the relative sizes of objects, seeing a perspective change without a size change is a highly unsettling effect, often with strong emotional impact.

The effect was first conceived and patented by Romanian Director of Photography Sergiu Huzum, but was first used by Irmin Roberts, a Paramount second-unit cameraman, in Alfred Hitchcock's film Vertigo.

The dolly zoom is commonly used by filmmakers to represent the sensation of vertigo, a "falling-away-from-oneself feeling" or a feeling of unreality, or to suggest that a character is undergoing a realization that causes him or her to reassess everything he or she had previously believed. After Hitchcock popularized the effect (he used it again for a climactic revelation in Marnie), the technique was used by many other filmmakers, and eventually became regarded as a gimmick or cliché. This was especially true after director Steven Spielberg repopularized the effect in his highly regarded film Jaws, in a memorable shot of a dolly zoom into Police Chief Brody's (Roy Scheider) stunned reaction at the climax of a shark attack on a beach, after a suspenseful build-up.