Nope (2022)

When a Hollywood horse-wrangling father is killed in an inexplicable accident of metal bits raining from the sky, his unprepared kids (including Daniel Kaluuya of Peele's Get Out and the bike-for-points Black Mirror) are left to try to salvage his horse-wrangling business. They aren't great at it.

The wranglers sell some horses to the nearby cowboy amusement park to make ends meet. The owner of the amusement park survived a chimpanzee massacre on the set of a TV show when he was a child actor, which we get plenty of flashbacks regarding.

Horses start vanishing. They hire a weird stalker from Geek Squad to install some security cameras, and discover that their horses are being stolen by clouds.

The horse wranglers and Geek Squad stalker hire a cinematographer to catch cloud aliens on video. Everything goes awry and most of them are eaten by a cloud while Kaluuya looks up at the sky and says "nope!" a lot.

Kaluuya eventually brings the metaphor home, determining that the cloud is not a spaceship but a living creature, and partially tames it with his horse-wrangling skills. It unfurls into a massive sky jellyfish and they feed it a balloon, which is apparently very bad for jellyfish.