The 1956 film "Forbidden Planet" is based on which play by William Shakespeare?

"Forbidden Planet" is a 1956 American science fiction film from Metro-Goldwyn-Mayer, produced by Nicholas Nayfack, and directed by Fred M. Wilcox from a script by Cyril Hume that was based on an original film story by Allen Adler and Irving Block. It stars Walter Pidgeon, Anne Francis, and Leslie Nielsen.

The characters and isolated setting have been compared to those in William Shakespeare's "The Tempest", and the plot contains certain analogues to the play, leading many to consider it a loose adaptation.

The planet Altair IV is like Prospero’s island, and it is a place where Dr. Edward Morbius lives in isolation with his daughter, just like Prospero and Miranda.

Prospero controls magic and summons a storm to attack a ship at sea. Morbius doesn’t exactly “summon” the monster, but his unconscious self does, and it attacks the spacecraft and the visiting men. Just like Prospero has mastered magic, Morbius seems to have mastered technology.

John Adams is Ferdinand and he falls in love with Miranda, represented by Altaira. Robby the Robot is Ariel, a spirit of air summoned by Prospero to be his servant. Robby is helpful like Ariel and tries to obey his master’s commands.

Caliban represents The Monster of the Id, and both are untamed forces. Prospero tries to control him, but he cannot. At the end, Caliban refuses to serve Prospero and plots his death, attacking him for his cruelty, just like The Monster of the Id.