The Wizard of Oz is based on a book written by L. Frank Baum by the same title. When productions are adapted from sources such as books, directors often have to make decisions about what will work in the production and what needs to be changed from the original book version. Research the differences and similarities between the book and film versions of The Wizard of Oz. What are three differences or similarities between the book and film versions? Does the film represent the artistic version of the book, even though changes were made?