Before Sunset
The first film was a fever dream. The second film is a reality. Maybe sad, maybe not what we all wanted, but reality. This film works like a cold shower, it washes away all our delusional thoughts. But the truth is, we must believe. Believe in something or someone, believe that Jesse and Celine will be together, because "If you don't believe in any kind of magic or mystery, basically, as good as dead".
I'm sure that this is the best part of the trilogy and you cannot convince me otherwise.