Gay cowboy drama Brokeback Mountain has won four Baftas at the Orange British Academy Film Awards. 

The low-budget film won best film, best adapted screenplay, best actor in a supporting role for Jake Gyllenhaal and best director for Ang Lee.

Based on a 1997 novella by author E Annie Proulx, Brokeback Mountain tells the story of the forbidden love that develops between two male cowboys who meet on a Wyoming ranch in 1963.

Last month, Brokeback Mountain scooped four Golden Globe awards in Hollywood. 

The controversial film also heads the nomination list for this year's Oscars.

Despite picking up 10 nominations, British political thriller The Constant Gardener took only one award for editing.

Seymour Hoffman won best actor for his performance in Capote, while Reese Witherspoon won the actress award for Walk the Line.

British star Thandie Newton claimed the BAFTA for best supporting actress for her role in the low-budget racial drama Crash.  Speaking after receiving her supporting actress award, Newton said: "This is the highest high ever. I don't expect it to get any higher."

The award for best British film went to Nick Park's animated feature Wallace and Gromit: The Curse of the Were Rabbit.

The Chronicles of Narnia: The Lion, the Witch and the Wardrobe won the make up and hair award, Crash won the BAFTA for Original Screenplay and the Anthony Asquith Award for achievement in film music went to John Williams for Memoirs of a Geisha.

Antonio's Breakfast won in the short film category, while Fallen Art scooped the short animation award.

The Academy Fellowship, the highest accolade bestowed in recognition of an outstanding contribution to world cinema, was given to Oscar-winning film director David Puttnam.