Moon stars Sam Rockwell as a man living alone on the lunar surface
Science fiction thriller Moon has been named best British independent film and its director, Duncan Jones, has won an award for best first-time film-maker.
The British Independent Film Awards, which celebrate independently funded movies, also honoured screen veterans Daniel Day-Lewis and Sir Michael Caine.
At the ceremony held in London, best actress award went to Carey Mulligan in the coming-of-age drama, An Education.
And Tom Hardy was named best actor for his role in the biopic Bronson.
He was up against Sam Rockwell, Andy Serkis and Peter Capaldi.
Emily Blunt, Sophie Okonedo and Katie Jarvis were nominated for the best actress award.
BRITISH INDEPENDENT FILM AWARDS 2009
Best British Independent Film - Moon
Best Director - Andrea Arnold (Fish Tank)
Best Debut Director - Duncan Jones (Moon)
Best Screenplay - In the Loop
Best Actress - Carey Mulligan (An Education)
Best Actor - Tom Hardy (Bronson)
Best Supporting actress - Anne-Marie Duff (Nowhere Boy)
Best Supporting Actor - John Henshaw (Looking for Eric)
Most Promising Newcomer - Katie Jarvis (Fish Tank)
Best Documentary - Mugabe and the White African
Best Foreign Film - Let the Right One In
Outstanding Contribution - Daniel Day-Lewis
The Variety Award - Sir Michael Caine
Essex drama Fish Tank was nominated for eight awards and took home two - Andrea Arnold won best director and Katie Jarvis clinched the award for most promising newcomer.
Duncan Jones, the son of music legend David Bowie, won the Douglas Hickox award for best debut director for Moon - a moving account of space worker Sam Bell's lonely stint on a lunar base.
Sir Michael took the Variety Award while the Richard Harris Award for Outstanding Contribution to British Film went to Day-Lewis.
The awards, now in their 12th year, were hosted by actor James Nesbitt at the Brewery.
Anne-Marie Duff took best supporting actress award for Nowhere Boy, a chronicle of Beatle John Lennon's childhood.
And Looking for Eric's John Henshaw scooped best supporting actor for his role alongside French, former Manchester United footballer Eric Cantona.
Armando Iannucci's Westminster satire In The Loop took best screenplay.
This year's jury included The Wire star Idris Elba, Irish actor Liam Cunningham and Brick Lane director Sarah Gavron.
Stars on the red carpet speak out in support of independent films