Don't get around movie theaters much, any more . . . no particular taste for car-crash, cartoon ("animated"), and vampire sci-fi flicks on today's play list!
There are still some good ones, but if you're limited to what comes through national chain theaters, really good movies are rare. Also, weighing the archive of the entire 20th century against whatever comes out in a given year (or the last 20, let's say, depending on your perception of "now"), the former is bound to come out on top, if for no other reason than simply the sheer volume of (great) work.
But it's also true, they just don't make them like they used to. Even when we're telling the same "types" of stories, we're telling them differently. Today's "noir" isn't motivated by the same impulse as it was in the 30s, 40s and 50s because it can't be. Today's craftspeople and audience bring with them a vastly different set of ideas. To give just one example, take the level of commitment to the antagonist. Films are a lot more indulgent/sympathetic with the bad guy — or the good guy's bad side — than they once were. Noir back in the day seemed to offer "dark encounters" with the aim of imparting a message genuinely at adds with, and (gasp!) judgemental of, villains… or perhaps the "everyman's" regrettable actions. Showing the dirt was restrained and counterbalanced, and worked as an excuse to make a "wholesome" point. And the resolutions were cathartic. This has been turned upside-down now, where the resolution (often still a triumph of good, albeit with consistently deeper ambiguity) seems more like an excuse to indulge in dark pathos leading up to it. And while the physical reactions that today's movies inspire in their audience are orders of magnitude beyond what they used to be (i.e, John Wick), they also tend more toward stoking appetites than satisfying them, which makes sense given that the industry is deeper into the process of understanding how to generate commerce.
On the other hand, the argument can be made that what we're seeing now is more "real" and that this reality stems from increased freedom, production codes having relaxed and resources for filmmaking dispersed. From a functional point of view, though, I'm not so sure it's an improvement. Is our current response to violence/psychopathy/alienation better than our previous one? Does it serve us better? Are the movies themselves better now than they were before? Some say yes, others no. I think it depends on what you watch and who you talk to.