The cinematic universes popularized by the Marvel and DC
comic books have taken the world by storm. Ever since the latter half of the
20th century, people have been fascinated by narratives of superheroes, villains,
superpowers, and the struggle between the forces of good and evil. The first
saga of the Marvel superhero
films alone, which started with the 2008 Iron Man film, is a multibillion-dollar
industry.

Other film producers, film studios, television channels, and
even online streaming […]