A trailer for Spider-Man: Brand New Day has leaked online, giving fans an early — and unintended — look at Marvel Studios’ next Spider-Man film starring Tom Holland.
The footage surfaced Tuesday after reportedly being pulled from a private feedback and survey app that allows select users to watch trailers early in exchange for detailed responses.
Like recent Avengers: Doomsday leaks, the video is heavily watermarked and clearly not meant for public viewing.
Sony has already begun removing leaked copies from social media and video platforms.
Trailer Leak Origin And Quality
According to reports, the Spider-Man: Brand New Day trailer originated from a controlled preview environment where users are required to sign multiple agreements before viewing.
The leaked clips include dozens of invisible watermarks and appear in poor quality, with shaky visuals and separate audio clips circulating online.
Despite the low resolution, insiders say the footage is legitimate.
No official, high-quality version of the trailer has been released by Sony or Marvel Studios.
What The Leaked Trailer Shows (Spoilers Ahead)
While the footage is hard to see clearly, descriptions from viewers point to several notable moments inspired by classic Spider-Man comics.
The trailer reportedly recreates iconic imagery, including Spider-Man’s original pose from Amazing Fantasy #15 and a wall-crawling shot reminiscent of Amazing Spider-Man #546, which launched the “Brand New Day” comic era.
The footage also shows Spider-Man battling multiple threats across New York, including reformed Hand ninjas tied to the Daredevil and Defenders corner of the MCU.
Sadie Sink’s character delivers threatening dialogue toward Peter Parker and is described as potentially villainous.
“You’re a mess, Spider-Man. Don’t get in my way. Otherwise, it won’t just be your friends who don’t remember who Peter Parker is,” she says.
The teaser reportedly ends with a strong reveal of Jon Bernthal’s Frank Castle, confirming the Punisher’s presence in the film.
Spider-Man brand new day trailer leak. pic.twitter.com/cshGZAvdCk
— is Fallout 5 out? (@Fallout5out) December 16, 2025
LETS GOOOOOOOOOOOO
— Doom’s Servant (@lakersspammer) December 17, 2025
C:@KingSpyke_ pic.twitter.com/RQV8N4SY57
🚨 Spiderman Brand new day trailer leaked 🤯👇
— Movie Bot (@TheIronySociety) December 16, 2025
BRAND NEW DAY – Trailer Details (Reworded)
The trailer reportedly features Sadie Sink in a villain role, warning Peter Parker not to interfere. Peter is shown struggling to control his abilities, including a moment where he wakes… pic.twitter.com/vKtcquX12j
From the Leaked Spider-Man: Brand New Day trailer. We are so back👀🔥 pic.twitter.com/ZgJBsOs8Fl
— ☃️🌰 (@itsmemaxo) December 16, 2025
What the rumors say
The rumors actually say that Sadie Sink is playing Jean Grey, and she is responsible for Mark Ruffalo’s Bruce Banner reverting to the Savage Hulk.
That’s not all as it’s also said Jean Grey causes Banner to unleash none other than the Gray Hulk!
It’s also being claimed that the excursions in Secret Wars trigger the activation of the long-dormant mutant gene within the MCU!
Following The Avengers: Doomsday Leak Trend
The leak comes just days after Avengers: Doomsday footage surfaced online, tied to preview screenings attached to Avatar: Fire and Ash.
Both incidents suggest Marvel and Sony are facing increased security challenges around early trailer testing.
For fans trying to avoid spoilers, it’s best to steer clear of social media searches related to Spider-Man: Brand New Day for now.
Release Info
Spider-Man: Brand New Day gets released in theaters on July 31, 2026, directed by Shang-Chi‘s Destin Daniel Cretton.
The film stars Tom Holland, Zendaya, Jacob Batalon, with Sadie Sink, Jon Bernthal, and Mark Ruffalo. Michael Mando will play Scorpion, with Marvin Jones III as Tombstone. Liza Colón-Zayas has an undisclosed role.
