"Vertigo" is a psychological thriller film directed by Alfred Hitchcock and released in 1958. It follows the story of Scottie Ferguson, a retired police detective who becomes obsessed with a woman he is hired to follow. The film is known for its iconic use of the dolly zoom, a special effect that creates a disorienting effect, and its complex and suspenseful plot. It was not a commercial success upon its initial release, but has since gained a reputation as one of Hitchcock's greatest works and a classic of world cinema. It has been selected for preservation in the National Film Registry and was added to the United States National Film Registry in the first year it was eligible.