Most of mine have already been covered. Mufasa's death, Jessie's backstory, the Iron Giant's sacrifice, all of Grave of the Fireflies, the beginnings of Finding Nemo and Up.
Others are Bing-Bong's death and Riley about to run away in Inside Out (hit close to home for me), Dumbo's mother being locked away and singing to him, End of Evangelion and the 3rd Rebuild movie, Copper shielding Tod with his body so his owner won't shoot him in Fox and the Hound.
I'm surprised no mention has been made of Barefoot Gen. I've only seen ever the Hiroshima bombing scene, but it was one of the most gut-wrenching things I've ever seen. Absolutely agonizing.
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Diagnoses: AS, Depression, General & Social Anxiety
I guess I just wasn't made for these times.
- Brian Wilson
Δυνατὰ δὲ οἱ προύχοντες πράσσουσι καὶ οἱ ἀσθενεῖς ξυγχωροῦσιν.
Those with power do what their power permits, and the weak can only acquiesce.
- Thucydides
Conservatism discourages thought, discussion, consensus, empathy, and hope.