My ex and I used to have "movie night" every so often. Frequently if we watched something too challenging for them, they would blame me, as if I made the thing. But rather than stick with "safe" popular movies, they insisted upon trying to process the weird arthouse/independent/fringe stuff I liked to watch. Sometimes they liked it, usually they didn't know what to think. Sometimes it got "too real" and they'd blame me - even if neither of us had watched it before - simply because they knew that they would not have seen it if we hadn't watched it together.
I was less invested in whether or not they liked a movie, than them being willing to discuss what they did or didn't like. That's where it all fell apart.