I didn't read that many reviews for INTERSTELLAR, so I don't know how frequently this point was made, but one of the things that I felt was the most refreshing about it was its secular-humanism. In sci-fi films, extraterrestrial intelligence is often used as an analogue for God, i.e., a "higher power". INTERSTELLAR completely bypasses that and makes the case that we are and will always be the shepherds of our own destiny. From the A.I. to the wormhole, everything in INTERSTELLAR occurs via hominis ex machina.
All while affirming the mysterious nature/power of LUVVVVV (but also sort of offering a pseudo-scientific explanation for that power)...
But that's what I'm saying, I really feel like Interstellar, thematically, should be a movie that speaks to just about everyone, regardless of your belief system, but instead it seems to really speak to very few, because so few people are willing to be inclusive in their belief systems of other systems that would, on the surface, seem contrary.
I really admire that the film tries to find that inclusion but does it in ways that are so broad and epic and sci-fi and yet also sometimes specific and intimate. I love that the movie's themes were basically born out of Nolan looking at his daughter (code name for the project was "Flora's Letter"), and admitting that he loves her, but what does love mean? it means Nolan gon' make a long, Spielberg-meet-Kubrick sci-fi adventure epic, that's what it means! wrote about that for Paste in a piece talking about how it and Under the Skin were being sorely overlooked by the Academy Awards.
I don't know if I like it quite as much as Memento or TDK, but Interstellar did nothing but boost my admiration for Nolan and his willingness to stretch himself, to be ambitious, to tackle complex but also essential themes, and to expand the horizons of how he makes films, as I really felt his collaborations with Hoyte and Zimmer on Interstellar yielded some downright poetically cinematic moments, even if exposition at times counteracted that effect (but that docking scene is a pure visceral symphony swell of art). I'm hoping he continues down that path with Dunkirk. So few current blockbuster directors push themselves or the thematic cogency of their movies at the level that Nolan does.
And I love that Nolan is an IMAX champion cuz I'm gonna watch the heck out of Dunkirk in IMAX. The IMAX stuff in TDK and Interstellar are some of my all-time favorite theater experiences.