Sam, I generally like your stuff. However, you just said the following about The Hangover:
The Hangover trilogy is essentially the worst tendencies of Old School, minus any sense of the best tendencies of Old School.
The performances are a failed attempt to compensate for the mess that results.
It doesn’t work.
Hangovers 2 and 3? Sure. But the original Hangover “works” in every sense of the word. I think your distaste for the latter portions of the trilogy unfortunately colors your reflection of the original.