Several people have said Heath Ledger's performance was exceptional in Brokeback Mountain. He has to play a very introverted, not to say emotionally repressed, man. It's a hard role, as he has to convey a lot of what he is feeling without saying anything about it, and in many cases without much change to his expression or body language. The short scene which I liked best wasn't repressive though . It was the scene where he has said goodbye to Jack, and he's walking down the road, and you wonder whether he actually realises what is happening in his own heart, and then suddenly he runs into the alley between two buildings and falls to his knees and starts retching and gasping. And he's using his hat to try to stop anyone from being able to see his face. Boy. What a performance. And very much in the classical model of what performance is about, to act out the inner life of the audience, that experience of being shocked and helpless at the violence of unwanted feelings. And perhaps we haven't knelt in a windy alley and sobbed, but we probably have all felt like that.