I'm a sucker for heavy feel, melodramatic, bittersweet shit. I was also summoned here by MikeHattsu via
Twitter 
There are spoilers in my post but, whatever,
read at your own risk. Also, all anime films. dealwithit.webm
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5 Centimeters Per Second's ending
A sea of memories flood back, set to Masayoshi Yamazaki's
"One More Time, One More Chance". The whole movie, set in three parts, tells the story of a boy's strugle with what is likely his first love and with nearly all first loves, dealing with that strange emptiness as it seems the world conspires to end that love. In the first act, we seeour protagonist struggle and work for that first love, only to eventually be separated beyond all contact by the widening maw of distance and time. In second half, we see him struggle to cope with the feelings of powerlessness, emptiness, and obliviousness that all seem to follow young adults. And in the last act, we his depressed, anxiety ridden state as an adult in the real world, plauged by a series of poor relationships that don't match this ideal in his head of the girl he lost long ago...and then on a chance meeting at the traintracks of his youth, he gets the split opportunity to see the love of his past, only to be taken denied by the trains that have so long hindered him. When the trains pass, she's gone...but he's okay. He's moved on. He's let go.
The montage (set to this:
https://www.youtube.com/watch?v=fKiFlKFFgpc) two thirds into
Saint Young Men
The whole movie has seen roommates-on-vacation-to-Earth Jesus and Buddha (yes, that's right) bizarre, but lighthearted interactions with the people around them, from all walks of life. But then they seeming disappear for but a moment, and we see, in the soft light of a sunset, the hole the people feel they left behind, missing who they were and the brightness they brought.
The ending of
The Place Promised in Our Early Days
Our heroine has been a strange coma throughout the later part of the film, yet has been able to witness reality vividly while asleep. Her childhood friend comes and rescues her after years apart, sacrificing all to fly him and her comatose body to the strange tower reaching into the sky, trying to fulfill a childhood promise he made to take her there, as well as wake her up. She's fallen in love him while dreaming and witnessing everything but when he breaks the tower holding her in her dream, she awakes, still in love with him, but she can't recall why, the memories fading like a dream you no longer remember.
Ending of
Wolf Children
We see the two titular wolf children, the last of their kind, struggling to figure out where they belong, and their single mother, trying desperately to hold their strange little family together. She's witnesses them struggle to fit in and even deal with each other. Her daughter works well in human society but her son struggles to understand, everyday spending more time in the wild, and she's faced with a tough choice but makes one with a strong face: she lets them choose their own happiness, wherever that is.