Matthew Broderick holding hands with Sarah Jessica Parker while walking in Midtown and later riding on a scooter with little James ... Maggie Gyllenhaal crossing the street ... Calvin Klein eating outside with a friend ... Carla Bruni carrying a Post under her arm ... Marcia Gay Harden and her daughter crossing the street with smoothies in hand... Katie Holmes leaving her building solo ... Sarah Palin arriving at the Colombian Embassy on the Upper East Side ... Diane Lane posing with an autograph-seeker outside her hotel ... Julianne Moore hopping into a SUV outside her West Village townhouse ... Matt Dillon stepping off the sidewalk ... Billy Bob Thornton outside NBC before taping Conan O'Brien's show ... and John Mayer all dressed up en route to a benefit.