Mischa Barton attended the premiere of her new movie, Assassination of a High School President at the Sundance Film Festival in Utah yesterday. Is it just me or does she looks cleaner than she has in a while? She always has that "just smoked a bowl" look about her. But what happened to this chick's career? I mean, just a couple of years ago she was on The OC and all was peaches but then she kind of disappeared and came back as a brokedown version of Lindsay Lohan.