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Young Dorothy (Dorothy Dwan), a farm girl from Kansas, discovers that she's actually Princess Dorothea, the royal heir to a faraway kingdom called Oz. Suddenly, a powerful tornado whisks Dorothy, her uncle Henry (Frank Alexander) and three farmhands to the magical kingdom. There Dorothy is hailed as the queen of the land by all except authoritarian Prime Minister Kruel (Joseph Swickard), who casts a curse on Dorothy in an attempt maintain his dictatorial reign. Wikipedia