I guess if its new, people call it overrated maybe because they don’t like it and it annoys them that everyone talks about it. If its an older movie, then its different.

I think the whole unpopular opinion thing has become a way for people to get people to talk about a topic that they want to talk about without saying “I just saw movie XYZ and thought it was great, lets talk about it in this thread”, which I guess would be kind of weird. Like whenever I search this sub for some 30 year old movie I just watched, only upvoted ones with discussion are either “X movie is amazing, Y was so good playing that character” or “Z movie is criminally underrated. How is no one talking about it?”.

It could literally be a massive box office success that had a huge cultural impact and someone will call it underrated because they haven’t seen someone make a reddit post about it in the last week.