Yeah, Kilmer can barely talk. Afaik, Iceman's condition in the new Top Gun was pretty close to how he really is (not dying, but unable to speak much at all).
Funny, I just rewatched Willow for the first time in 20 plus years. I had really fond memories of it, but frankly it didn't hold up that well. Wasn't awful or anything, but not an amazing movie beyond some cool conceptual stuff and some great characters.
The rumor behind it was that George Lucas originally wanted to make all of the heroes in Star Wars midgets, but the studio basically said fuck no to that. So when Lucas wrote the story that was the basis for Willow, he finally got his midget fetish out.
Anyway, the world was pretty cool and I don't see why it wouldn't make for an interesting TV series, except for the fact that it's Disney, and I detest Disney