P.S. An actual film of L. Frank Baum's actual novel The Wonderful Wizard of Oz is an interesting idea. A film of The Marvelous Land of Oz—you know, the one in which the boy Tip is actually Princess Ozma—could rock.
And now that you* mention it, I'm shocked no one's ever gotten around to filming Geoff Ryman's Was.
We are told that it was by Bob Denver's insistence that "and the rest" was changed to "the Professor and Mary Ann," and that when the studio balked at rerecording the song he said "Include them or remove me."
I did not know that Dawn Wells had her turn as the lead in They're Playing Our Song on Broadway. (And I read just now that she spent years touring the country in musicals.)