I wouldn't call any modern Hollywood movie actually clever or mildly fulfilling, actually.
Avatar had an incredible visual presentation and a passible story, but you just don't call something unobtanium and expect not to make at least some logical gears come crashing to a sudden halt.
That's all. Oh, and the whole "nature that isn't actually nature" thing. Pandora is a machine, so the background stuff (PR) about the movie being environment related just made it look silly, even when it didn't have to.
I can actually separate between 'silly plot' and liking a movie on aesthetic grounds, which is what Avatar is.
I'm not saying it's transformers 2 or 3, which by all means should be wiped from the slate of history and time itself.
Neither of them can measure up in terms of plot to the 5000 dollar project known as Primer, so budget says nothing to me as a viewer. Why should I even care about such a thing?
If Prometheus is a huge pile of shit, I'll be the first to tell as well. I'm pretty hopefully I won't have to keep that promise though.