I'm looking for a movie I saw when I was younger. I've been trying to find it for years. I'm for sure that it was anime I'm just unsure as to whether it was a tv show or movie. It seemed like a movie.
I know there were 2 siblings a boy and a girl. I believe from what I can remember the brother was older. One of the two, I believe it was the brother was in league with the evil power of the movie I think. The only part I can remember these people were being turned into what I think was stone-maybe robots. They were very square looking at least in my memory-like they would be lego pieces that would fit together to make this large structure. I'm unsure if it was a ship, or a castle, but it was raising up into the sky. I have tried to look at movies online from google and IMDB and thus far have come up empty. I'm almost positive I saw it in the early 90s maybe late 80s. I think the evil power was some kind of witch. I want to say it was a woman but I'm not for sure. I don't remember seeing the evil power but I think I can vaguely remember the sibling being upset with "her" that this would happen to his sister or something of that nature.