I'll reserve judgment on the movie (I've not seen it yet), but I question the underlying premise. This cultural "degeneration" trope implies that there is a Noble Tradition that has been sullied by the crudities of modern life. When I look in the past, I see plenty of misery, cruelty, and stupidity. --Less than 100 years ago Southern papers were advertising Sunday lynchings as a proper, Christian family outing! (Bring the kids! Buy some souvenirs!)
This "everything's going to hell" trope is more or less like some crotchety old geezers on a porch complaining that things were better in "the good old days". Sure, there's plenty of stuff we need to change in our society (e.g., our pathetic health care system); however, there's plenty to be proud of too (open source software, public libraries, the community college system). You can find anecdotes of stupid or mean behavior in any society at any time; to extrapolate from those anecdotes to some meaningful historical trend is, to put it bluntly, sloppy reasoning.
Miles