"I was involved with Interstellar for a year," Spielberg explained. “Kip Thorne brought me the project with Lynda Obst, the producer, and I became fascinated with it. I spent a lot of time at the [Jet Propulsion Laboratory] in Pasadena,

Steven Spielberg has discussed his time working on Interstellar, which he ended up walking away from before Christopher Nolan took over.