Eyes Wide Shut is a 1999 erotic mystery psychological drama film directed, produced, and co-written by Stanley Kubrick. It is based on the 1926 novella Dream Story (German: Traumnovelle) by Arthur Schnitzler, transferring the story's setting from early twentieth-century Vienna to 1990s New York City. The plot centers on a doctor (Tom Cruise) who is shocked when his wife (Nicole Kidman) reveals that she had contemplated cheating on him the previous summer. He then embarks on a night-long adventure, during which he infiltrates a masked orgy of a secret society.

Kubrick obtained the filming rights for Dream Story in the 1960s, considering it a perfect text for a film adaptation about sexual relations. He revived the project in the 1990s when he hired writer Frederic Raphael to help him with the adaptation. The film, which was mostly shot in England, apart from some exterior establishing shots, includes a detailed recreation of exterior Greenwich Village street scenes made at Pinewood Studios. The film's production, at 400 days, holds the Guinness World Record for the longest continuous film shoot.

Kubrick died of a heart attack six days after showing the final cut of Eyes Wide Shut to Warner Bros., making it the final film he directed. In order to ensure a theatrical R rating in the United States, Warner Bros. digitally altered several sexually explicit scenes during post-production. This version was premiered on July 13, 1999, before being released on July 16, to generally positive but polarized reviews from critics, although its reception has improved over time. Box office receipts for the film worldwide were about $162 million, making it Kubrick's highest-grossing film. The uncut version has since been released in DVD, HD DVD and Blu-ray Disc formats.