Mine:

1) Bambi the scene where Bambi's mother dies.
2) Roman Holiday where Gregory Peck leaves, I sooo love Audrey Hepburn, she has an inner aura of sorts...
3) Dumbo where the little elephant Dumbo goes to visit his mom where she's locked up, & they show all the baby animals with their moms, but its so poignant ,Dumbo's mom can't be with him.
4) E.T. where E.T. finally left for his planet.
Many Hindi movies & a Bengali movie called Pather Panchali, A_G who doesn't seem to visit us anymore had a scene from Pather Panchali as his avatar. I don't think anyone else has here has seen it though.