40 years ago, one of the worst superhero movies ever debuted and marked the end of an era | Digital Trends

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• Directed by Jeannot Szwarc and written by David Odell, 'Supergirl' was intended to capitalize on the success of the Christopher Reeve 'Superman' films, but quickly became one of the worst superhero movies ever made.
• The film's failure signaled a shift in the industry, as Hollywood learned that blindly chasing trends without creative substance was a recipe for disaster, paving the way for a superhero renaissance in the decades to come.