With one magic word, Shazam! keeps the fun train rolling for the DC cinematic universe. DC was already on the right track with the success of Wonder Woman and Aquaman, but taking a chance with a B-list (maybe even C-list) character who had a chance to reach a younger audience might have derailed that momentum.
Some fans and critics might feel like DC’s big-screen product won’t be fully established until the big names like Batman and Superman have been restored, and the cinematic universe is on a path to getting the band together in another Justice League film. But Marvel seized the superhero movie pedestal with lesser characters and by creating a slow build that stoked anticipation for a big payoff.
Another reason that Marvel has succeeded while so many other studios and franchises have failed in trying to build a cinematic universe is its realization that many different types of stories and genres could be featured within a superhero universe. Movies like Guardians of the Galaxy and Ant-Man resonated with audiences because they were comedies as much as blockbuster spectacles. Humor has always been the honeypot for these movies.