Dune (titled onscreen as Dune: Part One) is a 2021 American epic science fiction film directed and co-produced by Denis Villeneuve, who co-wrote the screenplay with Jon Spaihts, and Eric Roth. It is the first of a two-part adaptation of the 1965 novel by Frank Herbert. Set in the distant future, the film follows Paul Atreides as his family, the noble House Atreides, is thrust into a war for the deadly and inhospitable desert planet Arrakis.

The film is the third adaptation of Dune, following David Lynch's 1984 film and John Harrison's 2000 television miniseries. After an unsuccessful attempt by Paramount Pictures to produce a new adaptation, Legendary Pictures acquired the Dune film and television rights in 2016, with Villeneuve signing on as director in February 2017. Production contracts were secured only for the first film, relying on its success before a sequel would be produced. Principal photography took place from March to July 2019 at locations including Budapest, Jordan, Norway, and Abu Dhabi. The ensemble cast includes Timothée Chalamet, Rebecca Ferguson, Oscar Isaac, Josh Brolin, Stellan Skarsgård, Dave Bautista, Stephen McKinley Henderson, Zendaya, Chang Chen, Sharon Duncan-Brewster, Charlotte Rampling, Jason Momoa, and Javier Bardem.

Dune was scheduled for a late 2020 release but was delayed due to the COVID-19 pandemic. The film premiered at the 78th Venice International Film Festival on September 3, 2021, before its international release on September 15, 2021; it was then released in United States theaters and streaming on HBO Max on October 22, 2021. Dune grossed $407.7 million on a $165 million budget. It was well received by critics and audiences with praise for Villeneuve's direction, screenplay, the performances of the cast, production values, costumes, Hans Zimmer's musical score, cinematography, and retaining core elements from the source material. The film won six awards at the 94th Academy Awards and was nominated in four other categories; it received numerous other accolades. A sequel, Dune: Part Two, was released on March 1, 2024, with another sequel based on Herbert's 1969 novel Dune Messiah in development.