My opinion on The Backrooms movie... SPOILERS!!
Finished watching the Backrooms movie in theaters and I have walked out as a changed man. Lots of references and phycological horror. Personal 10/10. I will be explaining everything I noticed, and why I'm upset with the backlash.
I personally loved it, but I see people complaining about how it isn't "accurate". It wasn't based off the Wiki or the Wikidot, so many entities and levels like the Smilers wouldn't be there. It's based off of Kane Pixel's YouTube series, as he was the one directing the movie. I also saw people being upset Bacteria wasnt there, and was replaced by a "corny" entity.
Still Life Clark was meant to be the personification of Clarks worst traits, and how he's not able to let go of his past. In the end, it was what killed him. It then goes after Mary, who ends up escaping from Still Life Clark, symbolizing she learned she needed to let go of her past trauma to move on in life.
As for the ending where it shows a Still Life Mary in the warped interview room, that could mean that even if we move on in our lives, some part of us is still living in that moment. We don't fully know if she escaped the Backrooms, but I like to think she did.
The movie wasn't supposed to be a loud and scary "everyone is being chased all the time" kind of horror. It was meant to be something that unsettled you and made you uncomfortable while also telling a story. People complaining that Still Life Clark didn't look like a generic scary monster missed the point of the movie entirely.
Still Life Clark is a being created from a misremembered moment in time, not something made just to chase and kill people like how some people wanted it.
EDIT: I'm seeing lots of discourse about the "racist connotations" of the movie. The movie is NOT racist. I see people saying because the actor that played the entity was white, it makes it blackface. That's not true. Blackface is meant to be harmful towards African culture by making fun of or belittling it. The actor was chosen for his bodily proportions resembling uncanny valley so they could use less cgi. "Oh but every other character is white, and he's portrayed as angry and abusive!" He has mental issues. If he were any other race, the story would be the same. Does it matter what race he is for him to have a developed and complex character?