This article is about the live-action movie, which shares a title with a book, video game, and animated film.

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.