movie was made, I was prepared for the worst, what with Rankin/Bass being involved (see The Hobbit for the exact reasons- and I like that cartoon to a degree). the first time I saw it I was not impressed. I have no idea why the band America was chosen to do any of the songs, as they were well past their prime by then. it's not awful, but it kind of jerks you out of the movie on occasion.
Peter S. Beagle wrote the book and the script for the movie and did a good job of getting the important stuff in it. that's the ugliest harpy ever animated, by the way.
Christopher Lee's voice as the rather evil king Haggard, who is never happy. people bring their own misery upon themselves.