I strongly disagree with reviewers who say the adult bookends are irrelevant and badly done. They provide an essential framework for the story. The adult actors are neither as attractive nor as talented as the younger leads are, but that's fine; they don't need to be.
My only quibble - and it is a very minor quibble - is that the character of Henry is just too evil within the context of this movie. I know people like that exist, people who are so mean and so stupid that they would keep on smirking when the hero is having convulsions, but no other character in this movie is drawn with such unrelenting severity. He is so evil he ends up dragging the whole movie down in a way it doesn't need to be dragged down. I suppose his being so excessively monstrous adds extra weight to Danny's accusation that Carter hurt him even more than Henry did, but that accusation didn't need such heavy-handed reinforcement; it was powerful enough in itself.
The direction, photography and screenplay could not be much better - an impressive debut for David Oliveras. All the performances are outstanding, particularly Tye Olson and Kyle Clare as Danny and Carter and Casey Kramer as Danny's mother. To paraphrase at least one other reviewer, she is the mother every gay man on earth dreams of. This is a lovely, believable, extremely well done movie.