But before Christopher Nolan signed on as the director of Interstellar, the director was none other than Steven Spielberg, who developed the story with Nolan’s screenwriter brother, Jonathan Nolan. Spielberg had been on the project for about a year when he moved his production company, DreamWorks, from Paramount to Disney, meaning he had to drop out as Interstellar’s director. Shortly afterward, Christopher Nolan came on as director, which came with a major rewrite by the director himself.