BEST SUPPORTING ACTOR  Justin Timberlake THE SOCIAL NETWORK Joseph Gordon-Levitt INCEPTION Kieran Culkin SCOTT PILGRIM VS. THE WORLD  Mark Ruffalo THE KIDS ARE ALL RIGHT  Christian Bale THE FIGHTER Nominees:Mark Ruffalo, for oozing charm and wit, his naturalistic acting was a breath of fresh airJoseph Gordon-Levitt, whose star grows everyday but who was never cooler