With "Wicked" the movie being an adaptation of the stage musical which is an adaptation of the book, things get confusing.

"The Wizard of Oz" is America's favorite children's book. And among critics and librarians, it was once the most despised.

The book is a prequel to L. Frank Baum’s “The Wonderful Wizard of Oz.” Elphaba, the name of the Wicked Witch of the West, is derived from the original creator’s initials. Go on ...