Spielberg Nearly Directed Interstellar, Nolan Took Over

Steven Spielberg was involved in the 'Interstellar' project for a year, even spending time at the Jet Propulsion Laboratory. He had engaged Jonathan Nolan to write the initial scripts. Spielberg ultimately decided not to proceed with directing the film, a decision that paved the way for Christopher Nolan's involvement.

Christopher Nolan took over the project, combining elements of his brother's work with his own ideas. While reviews for 'Interstellar' were mixed compared to Nolan's other films, he stated that the core of the film, focusing on family and humanity, was deeply emotional and the reason for his attraction to it.