40798, NEW YORK, NEW YORK — Thursday May 20, 2010. Julianna Margulies, best known for her role in «ER» pushes her son Kieran Lindsay Lieberthal in his stroller while out in NYC. **FRANCE, AUSTRALIA, NEW ZEALAND AND EASTERN EUROPE OUT** Photograph: Hector Vallenilla, PacificCoastNews.com**FEE MUST BE AGREED PRIOR TO USAGE** **E-TABLET/IPAD & MOBILE PHONE APP PUBLISHING REQUIRES ADDITIONAL FEES** UK OFFICE:+44 131 557 7760/7761 US OFFICE:1 310 261 9676