This is a teaser trailer for 2012′s The Avengers. Watch at your own risk — as I viewed the clip, all I could think to myself was how cool it would be if I saw it for the first time in a theater, instead of a shaky fancam YouTube clip — and read on after the jump for some more potential fun-ruining details. (Pro tip: only click “read the rest of the entry” if you want to deprive yourself of an awesome surprise.)
So, apparently, this runs post-credits after Captain America: The First Avenger, out this Friday. Kind of obvious that this would be attached to that movie, yes, and of course post-credits makes more sense than normal trailer placement, but still kind of a bummer to know that four days in advance.