Lost in Rings success
Lost in Translation picked up both lead actor awards: Bill Murray beat Johnny Depp and Jude Law, while Scarlett Johansson beat Uma Thurman and herself (for her role in Girl With a Pearl Earring).
Peter Jackson's adaptation of Tolkein's epic won five awards, including best film, and the Orange Film Award - voted for by the public.
Cold Mountain, shunned in the Oscar nominations, lead the field at the Baftas with 13 nominations, but only won best score and best supporting actress for Renee Zellweger.
Master and Commander: The Far Side of the World was among the big winners with four gongs, including a best director award for Peter Weir.
Bill Nighly represented British success, with a best supporting actor award for his role in the Christmas feel-good flick Love Actually.
Touching the Void, a documentary about a true life mountaineering drama, won outstanding British Film of the Year.
Winners in full:
Best film: Lord of the Rings: The Return of the King
Best British film: Touching the Void
Best director: Peter Weir - Master and Commander
Best actor in a leading role: Bill Murray - Lost in Translation
Best actress in a leading role: Scarlett Johansson - Lost in Translation
Best actor in a supporting role: Bill Nighy - Love Actually
Best actress in a supporting role: Renee Zellweger - Cold Mountain
Orange Film of the Year (Audience award): The Return of the King
Best film not in the English language: In This World
Original screenplay: The Station Agent
Adapted screenplay: The Return of the King
Carl Foreman Award: Emily Young - Kiss of Life
Short animation: Jojo in the Stars
Short film: Brown Paper Bag
Make-up and hair: Pirates of the Caribbean
Visual effects: The Return of the King
Sound: Master and Commander
Editing: Lost in Translation
Costume design: Master and Commander
Production design: Master and Commander
Cinematography: The Return of the King
Music: Cold Mountain
Michael Balcon Award for Outstanding Contribution to British film: Working Title films
Academy Fellowship: John Boorman