Superman III is a 1983 superhero film and the third installment in the Superman film series. The film follows the Man of Steel as he battles a supercomputer that has taken over the world and turns his attention to a megalomaniac businessman who plans to use a weather control machine to hold the world for ransom. Meanwhile, Superman's alter ego, Clark Kent, reunites with high school sweetheart Lana Lang, now a single mother, and must contend with his own inner demons.

The film stars Christopher Reeve as Superman/Clark Kent, alongside Richard Pryor as Gus Gorman, a computer programmer who becomes involved with the film's villains, and Annette O'Toole as Lana Lang. The film was directed by Richard Lester and produced by Pierre Spengler, with a screenplay by David Newman and Leslie Newman. Margot Kidder, who played Lois Lane in the previous films, appears in a reduced role due to conflicts with the film's producers.

Superman III received mixed reviews from critics and was a box office disappointment, earning $80 million against a budget of $39 million. The film's lighter tone and emphasis on humor have been criticized for deviating from the series' serious themes, and Richard Pryor's performance as a comedic sidekick has been particularly divisive. Despite its shortcomings, the film has gained a cult following among fans of the Superman franchise and is often cited as a guilty pleasure.

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