When a celebrity steps out with a new haircut — be it a French-girl bob , shoulder-skimming chop, or bangs — we're typically inspired to schedule a salon appointment, pronto. Other times, an A-lister's new look gives us the opposite impulse: to instead grow our hair as long as humanly possible, or invest in extensions. That's exactly what happened when we saw Millie Bobby Brown at the Godzilla premiere in Beijing yesterday.