Dwayne Johnson's comments about Superman casting during Black Adam's San Diego Comic-Con panel were a big letdown, but it may be exactly the kind of pressure Warner Bros. needs to finally bring Henry Cavill back to the DCEU. Cavill hasn't shot any scenes as Superman since Justice League's summer 2017 reshoots with Joss Whedon, and there's currently no announced plans to bring him back. Even so, that hasn't stopped Dwayne Johnson from constantly hyping up a potential confrontation between Superman and Black Adam, and his support of Cavill as Superman might be what it takes to finally get the Man of Steel star back in the red cape again.
Dwayne Johnson was already in talks to play Black Adam as early as 2007, just over three years before Cavill was even cast as Superman for Zack Snyder's Man of Steel. Development for The Rock's first appearance as Black Adam was in limbo for years before the movie finally started production, but Cavill has faced the opposite issue after several appearances, as the future of the DCEU's Superman has been up in the air since 2017. Despite Johnson's long road to Black Adam, that never stopped him from hyping up the character's impending arrival, and a lot of that hype has focused on the idea of a match between his Black Adam and Cavill's Superman.
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Back in December 2016, Cavill shared a picture of a meeting with Johnson on Instagram, and a few days later The Rock shared Black Adam and Superman fan art on Twitter, hyping up the idea of the confrontation and emphasizing his close relationship with Cavill. The teases have been fairly steady since then, reaching a crescendo with Johnson's recent Comic-Con comments about
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