(Image Source: Pinterest, Warner Bros. Pictures)
While "Interstellar" stands as a seminal work from acclaimed filmmaker Christopher Nolan, the script's initial concept wasn't his, nor was he the original director. Legendary director Steven Spielberg was initially attached to the project, beginning development on "Interstellar" in 2006. He publicly announced his departure from the director's chair in 2009, with Nolan officially taking over in 2012.
However, after seeing Nolan's finished version of "Interstellar," Spielberg expressed no regrets about his decision. In a recent interview with "Empire" magazine to promote his new film, "Disclosure Day," he candidly admitted that he believes Nolan made better use of the script.

(Image Source: Warner Bros. Pictures)
Spielberg first recalled, "I was only developing 'Interstellar' for about a year. It was Kip Thorne, the physicist, and Lynda Obst, the producer, who first brought the idea of 'Interstellar' to me, and I became fascinated with the concept. I spent a lot of time at the Jet Propulsion Laboratory in Pasadena, California, talking with the scientists and aerospace engineers there."
He then continued, "I actually hired Chris Nolan's brother, Jonathan, to write the first and second drafts of the script for me, but ultimately, we didn't use them. Jonathan told me at the time, 'If you ever decide not to make this movie, I can tell you who will take over. He's already been hounding me about it — my brother Chris.' And he was absolutely right. As soon as I decided not to make it, Chris immediately took over, maybe even the very next day. Instead of me directing it, 'Interstellar' turned out much better with Chris at the helm."
Nolan himself has mentioned this anecdote multiple times over the years, admitting he learned about the "Interstellar" project through his brother and gradually became fascinated by the story.
via: Total Film