I rarely go onto Reddit these days. After their warrant canary disappeared and their CEO was caught editing comments, I feel like it's no longer a website I want to support.
There aren't any real alternatives though. Voat is like 4chan fucked some YouTube comments and then had a Danares Targaryen style demon baby.
Some of the best discussions on movies that I've been a part of are taking place on archival movie torrent sites. There are many passionate, smart, and well-educated film buffs around those sites that have a depth of knowledge that I haven't experienced in many other corners of the web.
I'm very interested in learning more about that sort of topic. Would you mind sharing some of those websites? If you aren't comfortable sharing them publicly my email is in my profile.