I've been trying to remember the title to this movie, tried animated movie lists. Can't seem to find it. I used to watch it all the time in the early nineties but what I remember of the animation style it looks to be late 70's or 80's. Similar to sword in the stone or some of the earlier Disney movies.

Ok so here's what I remember: movie starts with a revolt in a dukedom, and the rightful princess is snuck away... possibly in a storm. The cresent moon features heavily in this sequence.
Zooms ahead years later. A young soldier (I think) is back in the dukedom. Meets a mysterious black haired girl I think named Selene. She's been raised by a witch, can turn into a black cat... a some point some rich snobby princess gets turned into a pig... that's sort of it...

Hope someone else knows this one.

This probably isn't right, but the description could possibly be a convoluted version of The Black Cauldron (1985)

Sorry if that's not it, but I wanted to give it a shot.