getting it/not getting it: Sure, there are some instances of this, some I could draw easy links to, it's just films often are open to interpretation. If someone proves to understand a narative for what it is and then doesn't like it, then they get it.
overrated: The lamest criticism in the history of the world. It says nothing, other than it suggests (as the previous does) "others were fooled." Good not great is a better alternative, but suggesting that is the end of the discussion is frustrating beyond words.