That's the only real cinematic in the game. There are motion comics that give more character background that pop up from time to time. The chick taking out Wonder Woman more than likely is Circe. And the Guy yelling shazam is Black Adam. He was the wizard's champion before he became corrupted. I say more than likely with Circe because I'm on my phone and can't rewatch the cinematic.
Edit:
The motion comics are called "Headlines".
Here's one for Black Adam:
And Circe:
Edit again:
You might recognize some of the voice actors. Mark Hamill and Kevin Conroy reprise the Joker and Batman from the animated series, and Lex is played by James Marsters (of Buffy and Smallville fame) and Circe is portrayed by Michelle Forbes (ST:TNG, True Blood). There voice cast list is stellar:
http://www.imdb.com/title/tt1327585/