Though often associated with 2019/2020 festivals, this Italian film by had its main release later.
: Set in a vertical prison (the "Pit"), two inmates per level share a food platform that descends from the top. Those above feast, while those below starve, leading to a brutal struggle for survival. [italiafilm uno] Il buco 2019
: It is "staggeringly beautiful" but intentionally slow and plotless, which some viewers find frustrating or dull. Venice 2021 review: Il buco (Michelangelo Frammartino) : It is "staggeringly beautiful" but intentionally slow
: Reviewers at Movieplayer.it praised its claustrophobic atmosphere and social commentary on greed and inequality, comparing it to films like Cube and Saw . Based on your search, here are the reviews for both: 1
There are two major films titled released around that time that you might be looking for. Based on your search, here are the reviews for both: 1. Il buco (English: The Platform ) — 2019
This is a Spanish dystopian thriller directed by that became a global hit on Netflix.