This is his first movie, so why not let him be the only superhero and get the attention he deserves?
All the members of the League have had many of their own movies or TV shows at this point, but Aquaman has never had one all to himself.
James Wan told HuffPost that Superman, Batman, or any of the members of the Justice League don’t show up in Aquaman because it would take the spotlight away from Arthur Curry.