This was easily my favorite film from 2012 (that I've seen so far). Loved how the ups and downs in the story with the comedic and dramatic scenes relates to Cooper's character being bi-polar.
As someone who has struggled with mental illness myself, the movie hit really close to home, even though my situation is different, there were parallels to be drawn.
The scene where Cooper goes apeshit over A Farewell to Arms was one of my standout favorites (I think it was previewed in a trailer, so not quite as shocking to me as it could have been), though there are a lot of choice moments.
The thing about SLP is that it's not just another cheesy romcom, even though that's the skeleton on which it's built. It's a lot more somber than a typical romcom would be, for one, but it also just feels very authentic, albeit exaggerated.