In the beginning, falling skies was to be called Concord. It was in this title that Steven Spielberg and Robert Rodat developed the series aired in the United States on the TNT channel. It refers to the battles of Concord and Lexington, which occurred during the American Revolution. It was Steven Spielberg himself who proposed a change of title. This seemed to him to be more in tune with the post-apocalyptic spirit of the project.