Marvel Studios will release the next full trailer for Avengers: Age of Ultron today, provided fans take to Twitter to unlock it.

They don't give a solid number for just how many fans will need to tweet the #AvengersAssemble hashtag to unlock the video, but it's not even 10 a.m. yet on the East Coast and they've already got about 15% taken care of, so it's pretty likely we'll be seeing new footage sometime before dark.

The tweet itself, with a graphic to measure progress, is embedded below.

Avengers: Age of Ultron will be in theaters on May 1.