20 Things You Didn't Know About Interstellar
14. The Music Was Composed Using A 100-Year-Old Organ
Until the release of Tenet, Hans Zimmer was Nolan's go-to composer, having worked with the director from Batman Begins to Dunkirk (minus The Prestige).
Interstellar's organ-heavy score is possibly the most booming soundscape the pair have ever created, with that particular instrument being chosen, in part, due to its shape: "those pipes are like the afterburners of space ships" said Zimmer in a 2014 interview.
To produce the score though, Zimmer didn't just use any old organ - he used a Harrison & Harrison model from 1926, which was housed at the 12th-century Temple Church in London.
There's something fascinating about such a futuristic movie drawing its music from an almost 100-year-old instrument - a strange marriage that worked beautifully.