The Lord of the Rings: The Return of the King is a 2003 fantasy film directed by Peter Jackson that is based on the second and third volumes of J. R. R. Tolkien's The Lord of the Rings and the concluding film in The Lord of the Rings film trilogy following The Fellowship of the Ring (2001) and The Two Towers (2002).

As Sauron launches the final stages of his conquest of Middle-earth, Gandalf the Wizard, and Théoden King of Rohan rally their forces to help defend Gondor's capital Minas Tirith from the looming threat. Aragorn finally claims the throne of Gondor and summons an army of ghosts to help him defeat Sauron. Ultimately, even with full strength of arms, they realize they cannot win; so it comes down to the Hobbits, Frodo and Sam, who face the burden of the Ring and the treachery of Gollum, and finally arrive at Mordor, seeking to destroy the One Ring in Mount Doom.

Released on December 17, 2003, The Lord of the Rings: The Return of the King became one of the most critically acclaimed films and greatest box-office successes of all time. It won all eleven Academy Awards it was nominated for, which ties it with only Titanic and Ben-Hur for most Academy Awards ever won. It also won the Academy Award for Best Picture, the only time in history a fantasy film has done so. It is the 2nd highest-grossing movie of all time, grossing $1.2 billion worldwide, and it is the 49th most successful in North America once adjusted for inflation. The Special Extended Edition, containing an additional 52 minutes of footage, was released on DVD on December 14, 2004.