At TheWrap's Power Women Summit, Wicked screenwriter Winnie Holzman spoke about the decision to split the musical into two movies.

Of course, the most iconic book from the film is the Grimmerie, the magic book of spells. Given that the book is depicted as being illegible to all but Elphaba, the Insight Editions replica is ...

Chu and his team make several alterations that benefit Wicked's narrative tableau ... and his ties to the Grimmerie — an ancient spell book that holds all of Oz's magical secrets.