I see what you mean - maybe i shouldn't have used the word
mindless as lightly for the terminator movies - especially considering the current state of the movie industry.
But i dont think the discussion here is about how using action can make a movie good or bad.
You said at one point:
"And I don't see how you found The Terminator universe boring. It's a very interesting, action-packed trilogy."
Maybe it's just me here, but i dont think action contributes
much to a certain fictional universe. For example - i dont see how a 5-minute fight can contribute to that universe. Don't get me wrong, that fight can be awesome (as it should be!) but it will not affect how i see that universe (intresting or not).
Let's take the Mortal Kombat universe for a moment. Yes it has a backstory and everything it's not just some guys getting together and fighting. That universe is boring, it might have a few intresting moments but it really is boring and unintresting. That didnt make the first movie less awsome. (when i was a kid! - i'm afraid to watch the movie now because i'll think it sucks too hard)
Yea my example sucks but i couldnt think of a better one.
Anyway what i was trying to show with it is that while the Terminators were nice as movies, the mainstory and backstory didn't impress me enough to think their universe is cool. (i am using a past tense because i don't remember most of the details even of the main plot, i only remembered my reaction to said movies/plots)