According to El Mayimbe of Latino-Review, you will get your first glimpse of Batman v Superman: Dawn of Justice at 9am this Thursday with the release of a teaser trailer — only an hour before Star Wars: The Force Awakens panel during Star Wars Celebration. This sounds like a ballsy move on the part of Warner Bros.
You will also be able to signup for a special screening of the full trailer in theaters near you this coming Monday, April 20th. These special in-theater events are pretty fun and bring out the most interesting crowds. Odds are high that after the trailer hits those special screening that the full trailer will make its way online.
We won't have to wait long to find out if this rumor is true. Based on how quickly other reputable sites picked this up it seems like a studio "leak." El Mayimbe has very good WB sources so this rumor has real weight.
Latino-Review also reports that the full trailer will be attached to Avengers: Age of Ultron, which would align with the international release date of April 22nd. Obviously/sadly, we have to wait until May 1st in the USA.
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