Keira Knightley walking in SoHo with her mom ... Natalie Portman filming scenes for her new movie at the Wollman Rink in Central Park ... Carla Bruni and Nicolas Sarkozy walking out of a downtown restaurant ... Penn Badgley carrying takeout from Cafe Habana on Prince Street ... Brooke Shields hailing a cab in the West Village ... Naomi Watts pushing her son's stroller in NoHo ... Robin Williams carrying a Juicy Couture bag in the West Village ... Ed Westwick walking on Chrystie Street ... Emma Thompson posing for photographers outside the Letterman show ... Kid Rock leaving the Trump International Hotel ... and Anna Wintour getting out of a car.