I don't remember what the whole story line is but I used to watch this movie a lot when I was a kid, and I remember some parts. I remember towards the beginning a brother and sister were standing on a balcony and the brother looks up into rain or snow and gets a drop of it in his eye. This makes him bad or evil, and he is taken. The sister has to go through all kinds of obstacles to find him, and I think she has to meet characters from nursery rhymes or something. Anyway does this sound familiar to anyone? Thanks for any help you can give me!

You're thinking of Hans Christian Anderson's "The Snow Queen" I'm not sure which version you're thinking of but that's definitely what it is. But the two kids are best friends/ boyfriend girlfriend and their names are Kay and Gerta.