Ang Lee film wins top Venice prize
The film, which stars Jake Gyllenhaal and Heath Ledger, revolves around two gay cowboys and their secret affair which lasted for 20 years.
Lee is best known for directing the Oscar-nominated Crouching Tiger, Hidden Dragon, and is also the man behind films such as The Hulk and Sense And Sensibility.
Brokeback Mountain beat the original favourite, which was George Clooney's Good Night, And Good Luck.
Instead, Clooney's film was awarded Best Screenplay, and David Strathairn took the best actor prize in the lead role.
Meanwhile, the best actress award was handed to Italian Giovanna Mezzogiorno, who performed in La Bestia Nel Cuore, holding off competition from Gwyneth Paltrow and Isabelle Huppert.