Here is the 1st trailer of 'Justice League' which was specially launched at Comic-Con in San Diego.
And the trailer is awesome. In the trailer, you can see Batman with Aquaman, Flash, Cyborg and Wonder Woman. Superman is not there in the trailer, (but we are sure he won't be missing from the film itself).
With Marvel setting the benchmark and enthralling the audiences with 'Avengers', DC is all set to challenge Marvel with the 'Justice League'.
By the looks of the trailer, we are very much looking forward to the release of 'Justice League' in 2017 now.
[video source - youtube]