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Looking Back: Superman
Summary based only on the video description
A retrospective look examines the 1978 release of Superman, hailed as the arrival of the ultimate superhero on the big screen.
The description asserts that foundational modern cinematic superhero hits like The Avengers or Guardians of the Galaxy would not exist without this pivotal 1978 film.
Details regarding production specifics, plot points, or other concrete facts are missing from the provided text.