Embrace of the Serpent (2015) by Ciro Guerra

[Drunk Monk]

I'm gonna say this is a great movie.  I feel ya on your criticisms but I felt the film's commentary on the vanishing Amazonian tribes was fascinating.  Even the B&W move worked for me, because it would've been easy to just go for the verdantness of it all and have a beautiful film, but by removing the color, it gave it such a starkness, still beautiful, but tragically so. As for the falling flat, I'm guessing that's your take on the color payout and I agree.  I find that to be a bit of an overused cheap trick to use the B&W/color/B&W schtick in movies.  The film is so druggy and so for me, I was waiting for that take on the trip but it wasn't overly satisfying in the end.  Nevertheless, as one of those 'based on a true story' films, I thought it worked well and what an intense story.