The Tempest two other silent versions, one from 1911 by Edwin Thanhouser, are known to have existed, but have been lost. The plot was adapted for the Western "Yellow Sky", directed by William A. Wellman, in 1946. The 1956 science fiction film "Forbidden Planet" set the story on a planet in space, Altair IV, instead of an island. Professor Morbius and his daughter Altaira (Anne Francis) are the Prospero and Miranda figures (both Prospero and Morbius having harnessed the mighty forces that inhabit their new homes). Ariel is represented by the helpful Robby the Robot, while Sycorax is replaced with the powerful
Planet of the Dead the theme of Easter was not emphasised in the story; the episode only contained a "fleeting mention" of the holiday instead of "robot bunnies carrying baskets full of deadly egg bombs". The episode's tone word—"joyous"—was influenced by Davies' realisation that "every story since 'The Fires of Pompeii' [had] a bittersweet quality" and his subsequent desire to avoid the recurring theme. The starting point for the story was Roberts' first novel "The Highest Science". Davies liked the image of a train on a desert planet and rewrote the train as a bus. Davies nevertheless emphasised it was not an "adaptation as