With fans being concerned that Superman: Legacy has too many superheroes in Clark Kent's reboot, James Gunn expands on the purpose of additional costumed characters. Superman: Legacy is shaping up to be one of the most different Superman films in a long time, as other superheroes from the DC world are set to appear in the upcoming reboot. The film recently tapped not one but four additional cast members as respective members of the Justice League.
https://screenrant.com/superman-legacy-dc-heroes-james-gunn/