Nolan diz que ele não incluiu (intencionalmente) um subtexto religioso para o filme, mas que algumas das imagens, e definitivamente a trilha sonora são inspiradas por " religiosidade "em geral.
“Yeah, sorry about that…,” Nolan smiled, knowing Del Toro was referring to his painful attempts to get his dream project off the ground. Yet Nolan was more than happy to oblige when it came to speaking about the influences on the film, acknowledging how ideas will often build upon each other as the process of making one of his films plays out. At first, that brought to mind his initial discussions with composer Hans Zimmer that began with the use of a pipe organ as the baseline for “Interstellar”‘s score, talking about ideas of religiosity and though Nolan insisted, “It’s not a religious movie, aesthetically speaking, the architecture of cathedrals – the stained glass windows, the sound of the organ, these represent man’s most successful attempts to communicate the metaphysical, what might be beyond our reality.”
Christopher Nolan’s Five Unexpected Inspirations for “Interstellar”
e usa uma linguagem semelhante no Comentário do Diretor Blu-ray
Dito isto, ter um personagem principal cujas iniciais são JC, que literalmente anda sobre a água e redime a humanidade depois de passar um tempo no deserto com 12 pilotos Lázaro, certamente vai estar aberto às acusações de que a religião pode ter jogado > uma parte bastante considerável em seu processo de pensamento.“I wanted him [Zimmer] to use the church organ. I also made the case very strongly for some feeling of religiosity to it, even though the film isn’t religious, but that the organ, the architecture, cathedrals and all the rest, they represent mankind’s attempt to portray the mystical or the metaphysical, what’s beyond us, beyond the realm of the everyday.”