As you may or may not know, the Hans Christian Anderson story of the little mermaid has very little to do with the happy Disnified version. For example, she gets legs, but every moment she feels like she's walking on knives. This is a really beautiful 1976 version of the rather less happy version of the story. It is just so pretty! Unfortunately, it is in Russian. Youtube has a few clips with translations, but the clips don't include the whole movie and the visual quality of those is just not as good. So take a look at the Russian version. You can still appreciate how gorgeous it is. Here is the begining. I don't like water, but I have to admit that the underwater sequences are stunning. Also, in the fifth segment she dances. Remember that she's dancing on knives, though.