Creature from the Black Lagoon, which I saw in the theater at 9 years old, or so. I remember coming out of the movie crying my head off, just racked with sobs and sorrow for the creature. When I was watching it, I saw it from his perspective (MC?) and was so upset for him and his lagoon. I remember crying the same way at the end of Citizen Kane, when I saw it on TV about the same time period.
Maybe, they have some of what you are looking for.