Avengers: Doomsday directors Joe and Anthony Russo have posted a fresh tease for their upcoming Marvel blockbuster, exactly a year before it arrives in theaters — and featuring a countdown clock seen in the movie’s apparently-leaked first trailer.

The 10-second clip, posted to the Russo’s Instagram, features a clapperboard for Avengers: Doomsday, and then a countdown clock that begins ticking down from 12 months, showing the days, hours, minutes and seconds until the movie’s arrival.

If this ticking clock looks and sounds familiar, well, it’s because the same animation has been floating around the internet all week at the end of Doomsday’s seemingly-leaked first trailer — the one that confirms the return of a major Marvel star who had previously been kept (mostly) under wraps.

While Marvel is yet to come out and confirm the leaked trailer’s legitimacy, it is now all but certain to be is real. Not only does it feature the same countdown as in the Russo’s post, but the trailer has been repeatedly removed from social media via copyright claims, only further confirming it’s the real deal.

As IGN reported this morning, some fans have claimed to have now seen the full Doomsday trailer in theaters today, attached to early screenings of fellow Disney blockbuster Avatar: Fire and Ash. But others have left disappointed without seeing the trailer — its rollout currently sounds somewhat sporadic.

Over the past 12 hours, IGN has seen fresh clips of the Avengers: Doomsday trailer surface on social media apparently taken from within busy movie theaters — and we’ve also seen those same clips removed by a copyright claim, again adding weight to their legitimacy.

A plan to roll out four different Avengers: Doomsday trailers over Avatar: Fire and Ash’s first four weeks was also previously verified by The Hollywood Reporter, further prepping audiences for what’s to come. Currently, it’s unknown if or when any of these trailers will be available publicly, rather than being kept to theaters to encourage Avatar attendance.

To date, Marvel has only officially released its infamous cast reveal “chair” video showing off the film’s enormous ensemble cast that takes in surviving members of the old Avengers, the Thunderbolts (AKA The New Avengers), the Fantastic Four and several high-profile members of the Fox-era X-Men. A few production photos have leaked out over the film’s shoot, and fans certainly have their theories over where Doomsday’s story is headed, but much of the movie remains officially under wraps. When will we see more? The clock is now ticking…

Tom Phillips is IGN’s News Editor. You can reach Tom at tom_phillips@ign.com or find him on Bluesky @tomphillipseg.bsky.social