A brand new trailer for "Batman v Superman online 

It shows, from Bruce Wayne’s perspective, the massive destruction during the battle between Henry Cavill’s Man of Steel and Michael Shannon’s General Zod, reported Ace Showbiz.

“Today is a day for truth. The world needs to know what he stands for. That kind of power is dangerous. Let the record show that this city holds him responsible,” says Holly Hunter who plays a senator.

Meanwhile, Ben Affleck’s Batman himself says, “Twenty years in Gotham. How many good guys are left? How many stayed that way? He has the power to wipe out the human race, and I must destroy him.”

“We’ve done stuff in Man of Steel to launch this conflict,” director Zack Snyder explained during the discussion at the fan-centric convention.

“We put Gotham and Metropolis right next to each other. It makes sense for us in our story that they’re kind of sister cities across a big bay, like Oakland and San Francisco.”
Gal Gadot who plays Wonder Woman, Jeremy Irons who plays Alfred Pennyworth, Amy Adams who plays Lois Lane, and Jesse Eisenberg who plays Lex Luthor were present at the panel as well.
Each of their characters also got teased in the trailer. The movie will hit theatres in the US on March 25, 2016.