Representatives of the actor/director have quashed reports that he will helm the DC Comics adaptation, according to Deadline.
It was claimed that Affleck had been approached by Warner Bros to direct the ensemble superhero film, which is expected to feature Wonder Woman, Batman, Superman, Green Lantern and The Flash.
Deadline claimed to not have covered the news before, saying that it had checked the story out days ago and that they had already been denied ahead of reports linking Affleck to the project on Wednesday evening (August 8).
Affleck previously played Daredevil in the 2003 movie adaptation of the Marvel Comics property.
He also starred as Adventures of Superman actor George Reeves in 2006's Hollywoodland.
It is thought that the Justice League movie could arrive in 2015 if production begins soon.
Affleck will next be seen in political drama Argo, which he also directed.
Watch the trailer for Argo below: