Michelle Trachtenberg as Bella Swan? Unthinkable to most 'Twilight' fans, but the 'Gossip Girl' actress revealed Wednesday night to Us Weekly that she nearly landed the role that went to Kristen Stewart. "There was definitely interest here and there because there's only so few pale girls in Hollywood," she said. (What, Taylor Momsen wasn't available?) But Trachtenberg said she's "already done the vampire thing," referring to her years on 'Buffy the Vampire Slayer' as tag-along little sister Dawn.