Help me identify these 2 anime/manga/movie shows from my youth!

So there are a couple of cartoons that I remember from when I was little, and it seems to me that they were anime or something really similar…I’d kill to be able to watch them again, but I have no idea where I would look…
The first one I recall had this really interesting opening, and if I remember correctly, it revolved around two brothers or friends, and in the course of some battle or struggle, some kind of magical mirror or glass of sheer evil is broken/shattered - and a single, tiny, microscopic shard gets into the eye of one of the brothers, and it gradually turns him into a being of pure evil…

The other one (and hell, if may even be the same cartoon as the one above) had some little miniature pony thing in it - and toward the end of the movie, this little ungainly pony turns into a magnificent unicorn to battle some unbelievable huge dragon/demon/monster thing, saving a princess or some woman in the process. I think the pony even forfeits her life in the cause. But I can’t remember.

Any help my fellow dopers?

Did the little pony have a horn? The plot of the second movie kinda reminds me of what little I remember of Unico.

yeah, in fact, I think it did. and If I recall, the woman the pony saves at the end is either in love with or somehow under the power of some dark guy who becomes that horrific monster…

I’ll definitely do a google search on “unico” to see what turns up…

many thanks!

The first one, I am pretty sure, is from a russian folktale. I’ve seen this cartoon. I think it’s called “the Ice Princess” or “the Ice Queen”. It’s a brother and sister, not two brothers.

The first one probably comes from a fairy tale by Hans Christian Andersen: The Snow Queen.

The Snow Queen movie:

http://us.imdb.com/Title?0050987