On one of the nights of filming Kong's death at the World Trade Center, over 30,000 people showed up at the site to be extras for the scene. Although the crowd was well behaved, the Port Authority of New York & New Jersey (owner of the World Trade Center complex) became concerned that the weight of so many people would cause the plaza to collapse, and ordered the producers to shut down the filming. However, the film makers had already got the shot they wanted of the large crowd rushing toward Kong's body. They returned to the site days later to finish filming the scene, with a much smaller crowd of paid extras.