In the 1939 film version of "The Wizard of Oz", Glinda is the Good Witch of the North. She is played in the film by Billie Burke. Glinda performs the functions of not only the novel's Good Witch of the North and Good Witch of the South, but also the novel's Queen of Field Mice, by being the one who welcomes Dorothy to Oz, sends her "off to see the Wizard," and orchestrates her rescue from the deadly poppy field in addition to revealing the secret to going back home.