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
The Mysterious Planet robot costume and physically play the role, but it was realised that the costume would not fit Brierley's 6'4" frame. Therefore, a special effects assistant, Paul McGuinness, who helped design the costume, was called in to physically play Drathro, while Brierley spoke his lines from off-camera. Dominic Glynn was hired to score the incidental music for "The Mysterious Planet", then John Nathan-Turner offered him the chance to rearrange the opening title music. His new score for the opening theme was the shortest-lived, lasting for this season alone (not counting the unused 1973 version by Delia Derbyshire and Paddy Kingsland). The