'The Lord of the Rings: The Return of the King' has won in all 11 categories in which it was nominated at this year's Academy Awards.
Peter Jackson was named Best Director and his film also took the awards for Best Picture, Best Adapted Screenplay, Best Original Score and Best Original Song.
The film also won in the technical categories for Best Costume Design, Best Art Direction, Best Visual Effects, Best Make-Up, Best Sound Mixing and Best Film Editing.
'The Lord of the Rings: The Return of the King' now ties with 'Titanic' and 'Ben Hur' for the most Oscars won by a film.
It is the first time a fantasy film has won the Best Picture Oscar.
Highlights of the 76th Annual Academy Awards will be shown on RTÉ Network 2 tonight at 9.30pm.