HackerN ews user Metadat started a thread in which other Hacker News users recommend movies that changed their perception of reality or live:

https://news.ycombinator.com/item?id=40035002

I've compiled the answers into a list of movies in the order as they appear in the top level comments. All movies are linked to their TMDB page:

https://roose.digital/en/blog/learning/hacker-news-users-rec...

I've also created a Letterboxd list:

https://letterboxd.com/rroose/list/hackernews-users-reccomme...

Let me know if you would like any movie/info to be added.