Why Interstellar keeps pulling me back

I do not think I keep going back to Interstellar because of the spaceships.

The scale is genuinely part of it. The film is built out of things I already think about too much: distance, time, how small a human decision looks against a universe that is not paying attention. It commits to that properly instead of using space as set dressing.

But scale is not what makes it work. Plenty of films are enormous and forgettable.

What makes it land is that everything huge in it is measured against something small. Time dilation is an idea from a textbook until it becomes a man watching messages from a daughter who is ageing faster than he is. Distance is a number until it is the reason someone cannot come home. The film keeps taking quantities that are too large to feel and attaching them to a relationship you can actually hold in your head.

That is the move, and I do not think you can fake it. If the relationships were thin, the physics would just be spectacle with a soundtrack.

It is also why I have stopped thinking of films and space as separate interests of mine. They are the same interest arriving through different doors. A cosmological fact gets to me for the same reason that film does, and it is not the size of the thing. It is what the size of the thing does to the people standing underneath it.

A promise made across that kind of distance is a different promise. That is the part I keep returning for.