Aiming to defeat the Man of Steel, wealthy executive Ross Webster hires bumbling but brilliant Gus Gorman to develop synthetic kryptonite, which yields some unexpected psychological effects in the third installment of the 1980s Superman franchise. Between rekindling romance with his high school sweetheart and saving himself, Superman must contend with a powerful supercomputer.

Directed by: Richard Lester
Written by: David Newman & Leslie Newman
Release date: 1983-06-17
Runtime: 125 minutes
Critics score:
Tagline: If the world's most powerful computer can control even Superman...no one on earth is safe.
Related titles:
Cast:
Christopher Reeve Christopher Reeve
Clark Kent / Superman 
Richard Pryor Richard Pryor
August 'Gus' Gorman 
Jackie Cooper Jackie Cooper
Perry White 
Marc McClure Marc McClure
Jimmy Olsen 
Annette O'Toole Annette O'Toole
Lana Lang 
Annie Ross Annie Ross
Vera 
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Also known as:
  • Superman 3
  • Superman Classic III
  • Superman 3 - Superman vs Superman
  • スーパーマンIII/電子の要塞
  • 슈퍼맨 III