Since nobody responded, I'll just say this movie quietly blew my mind. Based on a novella by Denis Johnson, who also wrote the novella Jesus' Son, upon which a film was based that also quietly blew my mind in the 90's. I actually read that novella (JS) based on seeing the movie back then and will certainly be getting this one soon. If you ever saw Jesus' Son, you'll know what I'm talking about when I say quietly blew my mind, although thematically they are not really the same (I guess??), but the DNA is there.
There's just something about this sorta-known but quietly revered by those who do know kind of writers that captures the imagination. People who were doing these quiet works of unique genius but were either unknown or underknown (to various degrees) in their time. It's a long list: Melville (had fame early for his travel adventure novels, but was met with not much acclaim and sometimes outright scorn for his later works), Poe (ditto somewhat: he was a known writer in his day, but nothing like the later appreciation and fame he achieved), Nietzsche (so self-aware of the paucity of his readership in comparison with the magnitude of what he was producing that he quipped "some men are born posthumously"), Cormac McCarthy (certainly attained great acclaim later in life, but toiled for decades in relative obscurity, up to and including Blood Meridian).
Anyway, to make matters more interesting, my sister-in-law sent me a NYTimes article about Johnson a couple of weeks ago, it didn't register with me who he was when I read the title of the article, but I was intrigued enough to keep the tab open (which I rarely do, I'm weirdly fastidious about keeping as few tabs open as possible, on my phone, at least). Then I randomly (ha!) saw Train Dreams in the Netflix "you might like" queue, I glanced at the blurb and though, meh, why not? Such are the tenuous strands that lead us (and contribute) to our aesthetic bliss. Did I mention "highly recommended?"