Boyhood, the coming-of-age drama directed by Richard Linklater, scooped three prizes including best film and director at Britain's biggest film awards on Sunday 8 February, while The Grand Budapest Hotel took five gongs but missed out on the most prestigious awards.
''Rick is really going to be mad about this. Thank you to Bafta. This award is such an honour and it really goes to our entire Boyhood family. I think the heart of this film beats with the heart of everybody who worked on it from our amazing cast, to our fantastic crew and of course, no more so than Richard Linklater," said producer Cathleen Sutherland.
The Theory Of Everything garnered three awards including leading actor at the Bafta awards hosted by comedian Stephen Fry but The Imitation Game failed to convert any of its nine nominations.
Eddie Redmayne took the best actor award for his portrayal of Stephen Hawking, a celebrated cosmologist who is paralysed by motor neuron disease, in The Theory of Everything. The film also won the award for outstanding British film.
Redmayne said Hawking and his family had closely supported the film's production. The physicist attended the ceremony and received a standing ovation as he presented the special visual effects award to space-faring epic Interstellar.
The award for leading actress went to Julianne Moore for her portrayal of a linguistics professor grappling with Alzheimer's disease in Still Alice.
Mexican Emmanuel Lubezki won the cinematography award for his work on Birdman but the showbusiness satire failed to pick up the big prizes that some commentators had tipped it for.
Fry joked about his recent marriage - one of the most high-profile same-sex unions since they became legal in the UK last year - and paid tribute to the late British actor and director Richard Attenborough.
The Baftas are the major awards in the British film industry and are among a series of such events culminating in the Oscars, the top prizes in the movie world, due to be handed out in Los Angeles on 22 February.