After what appeared to be an international trailer for Avengers 2 leaked earlier today, Marvel has released the official Avengers 2 trailer along with a new poster almost a full 6 days earlier than planned. As we first reported, the trailer was supposed to first go live during the October 28th episode of Marvel's Agents of S.H.I.E.L.D., but because of the massive popularity of this movie, Marvel obviously couldn't let it slide.