My underrated picks would be **Melancholia **(2011) about a planet passing unsettlingly close to the Earth during a wedding, and **Coherence **(2013) about a group of friends gathering for a dinner party on an evening when a comet is passing overhead.
Typing this out I realise they actually both sound quite similar but I promise you they are very, very different and worth a watch.
I deleted my account and no longer browse there. I’ve only looked at posts for niche technical problems as a last resort. I was using libreddit or teddit but both those seem to have died, if there is any other way to view individual posts without giving them traffic please share it!