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

With "Wicked" the movie being an adaptation of the stage musical which is an adaptation of the book, things get confusing. Here's what to know.

Wicked movie director Jon M Chu has explained why some elements of The Wizard of Oz prequel don't match up. The film tells the story of how multiple characters from Dorothy Gale's iconic adventure in Oz came to be the way they are,

Wicked completely rewrites certain aspects of The Wizard of Oz, giving some scenes entirely new meanings that change the original story massively.