Movies that played at least some small part in inspiring me while I was writing the fanfic "The Other Side." Sometimes the whole movie is inspiring, sometimes it's just a couple lines. If you've seen the movie and read all of The Other Side, you might just be able to see what a movie inspired the fic. And yes, this is incredibly niche and I can't believe you even got here, but holy-- Hi!
Also, honorable mentions go to The Good Place and Severance, which only didn't end up on this list because they're technically TV shows. But the way I see it, The Other Side is so long that it should have ended up a series of books instead of the behemoth it's become, so TV shows feel like a fairer comparison, anyway.