Gavinmad
Mr. Poopybutthole
I'm kind of surprised Black Panther is on Iron Man's side, as in the comics, this is what happened when Iron Man tried to get Black Panther on his side.
^^Oooooooh. Rewatching the trailer, that's T'challa lying on the ground when that building gets blown up 41-42 seconds into the trailer. I'm guessing that's a summit of all the world's leaders meeting to discuss/ratify the Superhero Registration Act, and that's why Black Panther is on the pro-registration side. I'd guess that Ross frames Bucky for blowing up the building, as opposed to my earlier theory about Iron Man finding out Bucky killed his parents?
*edit*
Although Fadaar brings up a good point in IRC. How the fuck does Cap's shield bounce? Wouldn't it just hit something and immediately fall to the ground instead of bouncing away?