The evening started on a sombre note as guests gave a standing ovation in memory of Philip Seymour Hoffman, whose death was announced minutes before the ceremony.
12 Years director Steve McQueen hit the stage to accept the award for Best Film, while Chiwetel Ejiofor won Best Actor.
Steve Coogan collected the Best British Actress award for Philomena co-star Judi Dench and mingled with stars and critics at the vodka-soaked after-party at Novikov.
We chatted to Young British Actor Of The Year nominee George MacKay (How I Live Now) and Clio Barnard, who was thrilled to receive the award for Best British Film for The Selfish Giant.
With 12 Years the big winner of the night, all eyes will be on the hotly tipped British film come the Oscars in March.