UPDATE: It turns out this is an extremely well done fan-made fake. The footage of Crossbones is actually General Eiling from The Flash, with a doctored mask, and there are scenes taken from tons of other movies, including older Captain America projects. Whoever’s responsible for this – good work! You totally got us.
I really should have figured it out when I saw the Hulkbuster.
Captain America: Civil War, which we already know as basically Avengers 3, is coming spring of next year and has been filming for the last few months in the Atlanta area. Marvel sent a team to India Comic-con to show off the first teaser for the film, and we’ve got it for you right here. Given how this usually goes, I expect Marvel will have an HD version of this online by the end of the day, but watch it now before it gets taken down!
(h/t to Aggressive Comix)