The 2003 film The Lord of the Rings: The Return of the King won 11 Academy Awards.
Directed by Peter Jackson, the film won every category in which it was nominated at the 76th Academy Awards in 2004. Its awards included Best Picture, Best Director, Best Adapted Screenplay, and awards for music, visual effects, editing, costumes, sound, makeup, and art direction.
The achievement tied the record for the most Oscars won by a single film, alongside Ben-Hur and Titanic at that time. It also became the first fantasy film to win Best Picture.
The film is an adaptation of Tolkien’s novel, not a direct production by Tolkien, who died in 1973. The movie’s awards therefore belong to the 2003 film and its filmmakers, performers, and production teams.