Click image to enlarge. [Photo: Rex Features]

The kids from the hit flick Twilight trod the red carpet in Leicester Square Wednesday night, in front of 3,000 screaming fans, some of who camped out overnight - brrr! Despite the freezing conditions, Kristen Stewart, who is set to play Joan Jett in a forthcoming biopic, grinned and bared it in a thigh-skimming charcoal grey assymetrical dress from La Perla's spring '09 collection. While vampire hottie, Robert Pattinson, cut quite the dashing figure in a simple black suit and thin tie. It was enough to leave the girls squealing "bite me!" Yes, really.