<Tr> <Th> Box office </Th> <Td> $11.1 million (USA) </Td> </Tr> <Ul> <Li> Oz portal </Li> </Ul> <P> Return to Oz is a 1985 fantasy adventure film directed and written by Walter Murch, an editor and sound designer, co-written by Gill Dennis and produced by Paul Maslansky . It stars Nicol Williamson as the Nome King, Jean Marsh as Princess Mombi, Piper Laurie as Aunt Em, Matt Clark as Uncle Henry and introduces Fairuza Balk as Dorothy Gale . It is loosely based on L. Frank Baum's Oz novels, mainly The Marvelous Land of Oz (1904) and Ozma of Oz (1907), yet is set six months after the events of the first novel, The Wonderful Wizard of Oz (1900) took place . Although it is not a sequel to the 1939 Metro - Goldwyn - Mayer film, The Wizard of Oz, it borrows a few elements of it such as the ruby slippers . </P> <P> The plot focuses on an insomniac Dorothy, who returns to the Land of Oz only to discover that the entire country and its inhabitants are facing near extinction at the hands of a villainous king who dwells in a neighboring mountain . Upon her second arrival, she, alongside her pet hen, Billina, befriend a group of new companions, including Tik - Tok, Jack Pumpkinhead and the flying Gump . Together they set out on a quest to save Oz and restore it to its former glory . </P>

What is the sequel to the wizard of oz