Batman V. Superman Trailer Officially Classified

The British Board of Film Classification has officially classified and approved the trailer for Batman v. Superman: Dawn of Justice.
Seems like fans will be getting a good chunk of content when the trailer finally arrives. The trailer is listed as having a runtime of 2 minutes and 6 seconds.
These classifications usually comes just weeks, if not days, before a trailer releases. This would seem to backup rumors of a trailer teaser for the film releasing tomorrow, with instructions on how to see the full trailer in a theater on April 20.