HBO Officially Changes a Fundamental Rule of DC Superhero Canon

In 2014’s Justice League: War, heroes including Superman, Wonder Woman, and the Flash unite to defend Earth from an invasion led by Darkseid. Batman and Green Lantern are among the first to stumble into an uneasy partnership. As they pursue an alien through Gotham’s sewers, Hal Jordan spends much of their first conversation flying behind Batman and showing off. When he finally lands, the Dark Knight casually slips the ring from Hal’s finger. The green costume and powers immediately disappear. He regains his Green Lantern powers only after summoning the ring back to his hand.