I tend to get really emotionally invested in most of the fiction I partake in, unless it's really poorly done. I suppose I should give a few specific examples, let's see... Eight Below, Dragonheart, The NeverEnding Story, AI: Artificial Intelligence, To Kill a Mockingbird, Green Mile... to name a few.
EDIT: Oh, I forgot Gunslinger Girl/II. That anime yanked hard on my heartstrings with every episode.
EDIT: Oh, I forgot Gunslinger Girl/II. That anime yanked hard on my heartstrings with every episode.