Rain, flood and ocean as verdict rather than weather — the same water clearing the sky for one household and reaching the ceiling of another.
Water is the cheapest way for a film to say something is out of your hands, which is why it usually reads as a cliché. What earns it a place here is asymmetry: the same water has to mean two opposite things in the same film, or the meaning has to arrive as a change of scale.
Parasite is the clearest case — one downpour, two addresses, opposite verdicts. Interstellar converts water into scale: a shin-deep ocean with mountains that turn out to be waves, which is horror produced entirely by a corrected estimate. Spirited Away goes the other way and lets a flood make the film quiet.
Parasite2019 · Bong Joon-ho★ 4.8 · 1The downpour that clears the sky for the Parks' garden party fills the Kims' home to the ceiling: one weather event, two addresses, opposite meanings.
Interstellar2014 · Christopher NolanMiller's planet is a shin-deep ocean whose mountains turn out to be waves — terror produced by nothing more than a correction of scale.