Us (2019)
So, this is a horror movie about a family that goes on a vacation, and end up being attacked by doppelgangers of themselves. It starts with our protagonist, Adelaide, as a child, who wanders into a hall of mirrors at a funfair and something mysterious happens, Then it cut to the current day and she's the mother in the family, and weird stuff starts happening. As a horror movie, it mostly works pretty well. It's written by Jordan Peele, and it's quite funny in places. But a sense of disappointment hits by the end when it tries to explain all this weird shit, and the result is so disappointing you wish they'd never bothered. That major fumble aside, it's pretty decent.