A serious clash of superheroes heroes is coming to the big, big screen. Last night, word broke that the first five seconds of the Batman v Superman trailer will be unveiled tomorrow morning (it’s online right now) ahead of an announcement for a theatrical trailer debut event on Monday, April 20th in select theaters. Now we have a bit more info Monday’s trailer event: namely that it will take place in IMAX theaters, which you can secure a ticket to right now.

The first Batman v Superman: Dawn of Justice trailer will be screened in select IMAX theaters on Monday during the event, preceded by an introduction from director Zack Snyder. We’re hearing that it will only be held in about 100 theaters or so across the country, so this will be a fairly limited engagement. That also probably means the trailer will be debuting online sometime on Monday as well.

The official website has now launched where you can sign up to get a pass to your local IMAX screening, but again, this is a limited engagement so locations aren’t widespread.

The IMAX debut makes quite a bit of sense, as Zack Snyder used the cameras for the first time on certain sequences for Batman v Superman. And if you’ve been following Snyder on Twitter already, it seems like he may have been alluding to the IMAX trailer event a few days ago when he posted the below photo. Be sure to come back to Collider tomorrow to see the first few seconds of footage from the trailer.

Batman v Superman: Dawn of Justice stars Henry Cavill, Ben Affleck, Amy Adams, Laurence Fishburne, Jesse Eisenberg, Gal Gadot, Diane Lane, Jeremy Irons, Holly Hunter, Scoot McNairy, and Jason Momoa and opens in theaters on March 25, 2016.

[Update: Regal Cinemas has posted a list of its participating IMAX theaters on its website, which we’ve included below.]