Justice League Teaser Breakdown: 20 Things You Need To See
2. I Didn't Think You Were Real...
Cyborg and Batman share a moment right at the end of the trailer, as Cyborg seemingly meets the Justice League leader for the first time. He says he's heard of Batman, but didn't think he was real.
Batman then comes out with the best line of the trailer, saying he's real "when it's useful". Right there we have the idea of Batman as a symbol, and also as Gotham's whipping boy in one. It's actually a very layered line.