21 “Wicked” Behind-The-Scenes Facts About The Original Broadway Cast And Creating The Musical

Susan explained to Playbill that originally, they were only allowed to use the illustrations from the original book for inspiration, and they reportedly had “no rights to anything connected to the movie.” So Susan wrote a letter to the production’s lawyers detailing how her inspiration was actually Princess Diana, Queen Elizabeth, and Dior, not the film. 

The bubble inspiration ended up being fair game because it was determined that it originated from the Oz books, not the movie.