Not long before the shot of Dorothy and the other Wizard of Oz characters is included in Wicked, a silhouette of her throwing water on the Wicked Witch of the West is also seen. This shot proves ...

Even the OG movie - which starred Judy Garland as Dorothy Gale, Margaret Hamilton as the green, cackling Wicked Witch and Billie ... as she throws a bucket of water on Elphaba.