Cooper,” Ledger said.It was after 8:00 P.M. on Thursday evening, and Mike had asked Ledger and Gleeson to take us through some of the physical plant, to explain to us the size and scope of the terminal. It was a good time to do it, with rush hour crowds already dispersed to their homes.“Maybe that’s why you look so familiar to me,” I said, smiling back at him.“You think I’m kidding, do you? Are you a Hitchcock fan?”“My favorite.”“North by Northwest? It was the first movie ever shot in Grand Central. 1959. My boss wanted a walk-on in a frame with Cary Grant, who was jumping on the Twentieth Century ’cause he was suspected of murder, so I tagged along in the shot.”We were standing at the iconic information booth, which was crowned by an opalescent four-faced Seth Thomas clock, a priceless golden ball that had kept perfect time for a century.“Good flick. Almost makes sleeping in the sleeping car of a train look sexy,” Mike said. “What are we looking at, Don?”“The main concourse, all thirty-six thousand square feet of it.