It's all relative, and trying to apply "scientific visualization" to literary criticism is not an especially useful activity. (Applying it to literary markets is another matter...)
Interestingly, I liked the Matrix sequels, the 3rd Spiderman movie, and thought the Star Wars prequels were pretty good (though not as good as _Empire_). And having been around at the time depicted in the latest Indiana Jones movie, late 50s early 60s, I enjoyed it tremendously.
I'm in my early 50s, and one of the things I've noticed over the years is that I become _less_ critical of movies and literature as I get older. That is to say I'm much more tolerant of elements in a movie or story that would drive me nuts when I was younger.
When you are very young, everything is new and wonderful, then you become an adult and suddenly you start to notice that "hey, I've seen this type of story before. And I liked it better then!" Of course most likely the story wasn't all that new when you saw it first, but it was new to _you_. There are very few truly new storie.
As you get older, though, you often start looking not at the flash and the surface of stories, but at the quality of execution, at the subtleties of exposition, and the nuance of character. You also can view the story in a larger context, both your own context, and the context of history. And, more importantly, you stop comparing the _qualities_ of works to the _feelings_ you had when you were twelve years old. I can tell you for sure, _nothing_ is ever going to be as much fun as whatever it was that was pushing your buttons when you were a kid.
As they used to say in old school science fiction fandom, "the golden age is twelve."
Sad, but true. In compensation, though, you do get a possibly deeper appreciation, and, if you let it happen, a broader range of tastes. If you had told me 30-40 years ago that one of my favorite genres would be josei anime and manga I would have laughed in your face; once you'd explained to me what that was...
Having said all that, the vast bulk of movies at any given time follows Sturgeon's Law pretty closely. Mostly shit. We remember the gems of the past and in aggregate they seem to add up to a larger sum than the current year's turkeys. I seem to go to the movies about as much as I did in my 20s and seem to be enjoying them at about the same rate.