Fire and Ice (1983)

Fire and Ice is a collaboration between director Ralph Bakshi and fantasy illustrator Frank Frazetta, using the same rotoscoping technique that Bakshi used in previous films. It’s a technique that gives the character movement a vibrancy and authenticity that traditional hand drawn animation had at that time struggled to emulate effectively.
Sadly, the plot is thinner than muslin cloth. A girl with a fat ass runs a lot, and two kingdoms go to war because of her. That's really all there is to it.

3 but only if you're a fan of Frazetta or animation out of 5