Pulp Fiction
Didn't really connect with Pulp Fiction when I watched it early on. But on this second watch, my opinion has changed.
Pulp Fiction's main theme to me is the changing of one's heart, and it tells three stories that intertwine without quite converging, in a non-linear way.
What I appreciate most on this watch are the non-linear sequences. I don't need to watch Pulp Fiction for a story that progresses from start to end. I can just enjoy each scene on its own, savour the dialogue, and let each sequence play out.
Few directors write dialogue as effective as Quentin Tarantino's. I can see myself just turning this on casually for a rewatch, because there's little need to focus on transitions between scenes, and each one is well-made enough to stand on its own.
Pulp Fiction doesn't try to do many things, but in a way also tries to do everything. Each story is so effectively simple you could retell it in a sentence, yet with the dialogue doing so much of the heavy lifting, it's a film you really have to experience on your own.