Julianne Moore standing on a subway platform waiting for a downtown train ... a spiffy-looking Kiefer Sutherland walking in SoHo ... Mariska Hargitay and Christopher Meloni filming scenes for Law & Order: SVU in Murray Hill ... Sarah Jessica Parker arriving at her townhouse in the West Village ... Teri Hatcher posing for photographers outside the Late Show with David Letterman in Midtown ... Ashlee Simpson walking to her apartment downtown, and later clowning around with husband Pete Wentz by walking in Union Square wearing Halloween masks.