The Hobbit: Cartoon
Pre-Peter King, the Hobbit's only life on screen was as a poorly animated cartoon character with a 70's folk soundtrack. Yet somehow, it managed to be beautifully drawn, wonderfully creative, and despite the aforementioned trilogy, this is still what comes to mind when I imagine Bilbo Baggins. Which is often.
This Ralph Bakshi animated version of the Hobbit freaked me out as a kid. It still does. Its pretty dark. Great movie.