All-new "Justice League Dark" clip features Superman, Wonder Woman, Batman & Green Lantern/John Stewart
The clip features the Justice League assessing the situation, and one notable member not quite believing there might be supernatural forces involved. The clip also includes the first appearance of John Stewart/Green Lantern as a member of the Justice League in a DC Universe Original Movie.
Justice League Dark synopsis:
Constantine. Like Batman, Constantine is a cunning, often cynical loner who is the best at his chosen profession – but quickly realizes the sinister forces plaguing the planet will require help from other supernatural alliances. Forming a new “league” with sorceress Zatanna, otherworldly Deadman, and Jason Blood and his powerful alter ego Etrigan the Demon, this team of Dark Arts specialists must unravel the mystery of Earth’s supernatural plague and contend with the rising, powerful villainous forces behind the siege – before it’s too late for all of mankind.