"Shooting in New York, especially something on this level, is difficult. I would say that, percentage-wise, it's the most amounts of middle fingers I've ever received in my career," Smith told reporters in Los Angeles.
"I was like: 'I'm used to people liking me. When I come to town, it's fun.' I thought, 'Middle fingers?'"
What provoked the reaction was his movie shut down six blocks of mid-town Manhattan on a Monday morning.
"That was probably poor logistics," conceded Smith, who plays the survivor of a virus that has wiped out most of the world.
"You have never actually seen an empty shot of New York," he said. "There are iconic buildings, there is a shot in the movie with the U.N. There is Broadway, and it puts such an eerie, icky, kind of feeling on the movie when you see those shots. Logistically it was a nightmare, but it absolutely created something that you can't do with green screen, and you can't do shooting another city instead of New York."