The Tribeca Film Festival is the only movie-star event in the world where the celebs stop and pose on asphalt instead of red carpets, where the scent of rib-eyes being offloaded from trucks into meat warehouses greets late-night revelers at premiere parties and where getting a cab home is easier than waiting for a limo. Now in its fourth year, the festival, started by Robert DeNiro and his business partner Jane Rosenthal, is going strong, with over 200 movies screening over two weeks in venues all across downtown Manhattan. Watch the stars as they grace the subway grates...