You really don't think film critics being different from the general population has anything do with it? They're trained to see things in movies that most peopl

You really don't think film critics being different from the general population has anything do with it? They're trained to see things in movies that most people don't. I get that you want people to say "selection bias" but that's not even close to the only significant factor at play here. You have two populations, which is also a classic statistical phenomenon. You even get close to this in your discussion of selection bias—they watch a lot more movies, and are thus more experienced—but you don't seem to want to allow this, which seems odd.