The Chronicles of Narnia/Tear Jerker

Even knowing he was going to die and later be resurrected, Aslan's death scene in The Lion, the Witch, and the Wardrobe. The sight of that great, proud cat, so cruelly bound, with his mane hacked off, knowing he is sacrificing himself for love... *cue hysterical sobbing* Simply how realistic and emotionally well done the death scene was. The parallel too.
- The BBC version, however, is a completely different story. The buildup is sad, but the death sequence is ruined by The White Witch's acting.
  - And the....shall we say, less than stellar animation.
And, precisely because you know what's coming, Peter and Susan's walk with Aslan near the end of Prince Caspian, and Peter's subsequent acknowledgement to the others that he would not be allowed to return to Narnia.
The end result of Storming the Castle in the Prince Caspian film is absolutely devastating - particularly the moment in which Peter looks back through the portcullis at the trapped Narnians, and at least one voice is clearly heard calling for him to save himself.
- You see the Narnians at the gate, all screaming and trying hopelessly to get out, and you know that each and every one of them is dead. And the look of anguish on Peter's face as he realizes the same thing, and there's nothing he can do about it...
- Props also to the brave Minotaur who held the gate open for as long as he could, only to be shot and crushed under its weight--a Heroic Sacrifice which saved many of the heroes, made even more poignant when one remembers that Minotaurs were "evil" in the first movie.
Lucy's goodbye to Aslan in The Voyage Of The Dawn Treader. Made especially more poignant, when you remember that Lucy was the first of those siblings to find Narnia.
What about Eustace's goodbye to Reepicheep? Considering the development their relationship has had throughout the movie, that scene was heartwrenching.