Blair Waldorf and Serena van der Woodsen — or, if we must refer to them by their street names, Blake Lively and Leighton Meester — were filming a scene in front of Karen Millen in Soho today. A crowd of teen girls and photographers surrounded them, and Intern Molly was among them. According to her, not a lot happened, just some "walking back and forth." But the pictures she took for a slide show tell a different story.