If you loved The Last Unicorn, try The Return of the King
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Arthur Rankin, Jr., Jules Bass, and they sit in Adventure / Animation / Fantasy territory. If that's the register that drew you to The Last Unicorn, the second film will land in a comparable space — through a different lens.
What The Return of the King is
Lord of the Rings without Peter Jackson. Frodo and Sam make their weary way to Mordor, as Aragorn leads the final stand against Sauron's armies. A perfectly watchable animated condensation.

