Argo won the BAFTA award for best film in London on Sunday. Director Ben Affleck also won the best director award.
The drama about the rescue of American embassy personnel in Iran in 1979, previously won best movie drama at the Golden Globes and several guild awards.
Daniel Day-Lewis was named best actor for Lincoln and Emmanuelle Riva of France won best actress for Amour.
Anne Hathaway won best supporting actress for her performance in Les Miserables and Christoph Waltz was named best supporting actor for his role in Django Unchained, a slavery-era Western.
The James Bond movie Skyfall beat Les Miserables for the award for outstanding British film.
Skyfall also took the award for original music. Les Miserables, the film version of a hit stage musical, won awards for sound and for make-up and hair.
Life of Pi won the BAFTA for best cinematography and Quentin Tarantino won the original screenplay award for Django.