Forbidden Planet is a 1956 science fiction film directed by Fred M. Wilcox, with a screenplay by Cyril Hume. It starred Leslie Nielsen, Walter Pidgeon, and Anne Francis. The characters and its setting have been compared to those in William Shakespeare's The Tempest, and its plot contains certain story analogs. Forbidden Planet was the first science fiction film that was set entirely in deep space, away from the planet Earth. It is considered one of the great science fiction films of the 1950s, a precursor of what was to come for the science fiction film genre in the decades that followed.

Forbidden Planet features special effects for which A. Arnold Gillespie, Irving G. Ries, and Wesley C. Miller were nominated for an Academy Award. It was the only major award nomination the film received. Forbidden Planet features the groundbreaking use of an all-electronic music musical score. It also featured "Robby the Robot", one of the first film robots that was more than just a mechanical "tin can" on legs; Robby displays a distinct personality and is a complete supporting character in the film.