400. » « Slow Sunday. Join The League! A new Justice League website has launched and will give fans a new way to experience the film. DC Comics invite you to “join the league” and if you sign up, you will be able to get exclusive content like products, sign up for sweepstakes, and more. Join The League. Via Heroic Hollywood. Share this:TweetShare on TumblrPocketMoreEmailPrintLike this:Like Loading... Related 400. » « Slow Sunday.