The Extended 5 mintute trailer of Capt. America only previewed with the 3D version of Thor 2.
I missed it too, which is why I had to find it, and now I share it with all of you too.
I was all excited about it, only to realize after the preview started that it wasn't the extended version.
Once I got home, that is when I read about the 3D exclusive part of the trailer.
(i edited the previous post to point that out for those who have yet to go see the movie)
unfortunately for me, 3D does not view very well, so it is not worth the extra money to me and would never be my first choice. But the opening Elevator scene is Capt America is HYPE inducing.
Can't wait.