Return to Oz is a 1985 dark fantasy film released by Walt Disney Pictures, co-written and directed by Walter Murch. It stars Nicol Williamson, Jean Marsh, Piper Laurie, and Fairuza Balk as Dorothy Gale in her first screen role. The film is an unofficial sequel to the 1939 Metro-Goldwyn-Mayer film The Wizard of Oz, and it is based on L. Frank Baum's early 20th century Oz novels, mainly The Marvelous Land of Oz (1904) and Ozma of Oz (1907). In the plot, Dorothy returns to the Land of Oz to find it has been conquered by the Nome King; she must restore it with her new friends Billina, Tik-Tok, Jack Pumpkinhead, the Gump, and Princess Ozma.


In autumn of 1899, Dorothy Gale's obsession with the Land of Oz troubles her Aunt Em and Uncle Henry, who believe she is delusional. They take her to the sanitarium of Dr. Worley who, assisted by Nurse Wilson, plans to administer electrotherapy before lightning causes a power failure. Dorothy is freed by a mysterious girl who tells her that Worley's machines damage patients. Nurse Wilson chases the girls into a river, where Dorothy climbs aboard a floating chicken coop but is unable to save the other girl and floats away downstream.