Presented as a sizzle reel rather an actual trailer, the footage (which comes with a note that it was prepared specifically for Comic-Con audiences) shows Bruce Wayne making his pitch to Aquaman and Flash to join his and Wonder Woman's team -- to varying degrees of success. While we don't see Batman's initial encounter with Cyborg, the cybernetic hero is accounted for in the footage as well, alongside his new teammates.
It's notable that the reel presents its heroes -- including Batman -- in a lighter tone than its predecessors in the DC Films universe, "Man of Steel" and "Batman v Superman." Aquaman is the most serious character presented in the footage, playing the super-serious straight man to a Dark Knight who quips, "I hear you talk to fish."
Fans also get a feel for this universe's version of Barry Allen. After spending two seasons with Grant Gustin's more-or-less together forensic scientist, Ezra Miller's less-focused, socially inept version stands in striking contrast. We also learn how the movie will handle Flash's use of the Speed Force, thanks to a scene showing Barry kicking into high speed when Bruce sends a razor-sharp Batarang at the young hero's head.
Directed by Zack Snyder, "Justice League" hits theaters on November 17, 2017.