AVENGERS: DOOMSDAY: The X-Men's Theme From The Movie Appears To Have Leaked Online

AVENGERS: DOOMSDAY: The X-Men's Theme From The Movie Appears To Have Leaked Online

How is this happening?! After a week of huge MCU leaks, it appears the X-Men theme from Alan Silvestri's Avengers: Doomsday has somehow managed to find its way online.

By JoshWilding - Dec 18, 2025 05:12 AM EST
Filed Under: Avengers: Doomsday

This week has seen Marvel Studios plagued by leaks. The first Avengers: Doomsday teaser trailer showed up on social media on Monday, despite the plan being for it to premiere exclusively in theatres in front of Avatar: Fire and Ash this weekend.

Audio from the second sneak peek—revolving around Thor—has also done the rounds, as have vague descriptions of the third and fourth teasers (those supposedly place Loki and Doctor Doom front and centre).

Then, there was the Spider-Man: Brand New Day trailer. That reportedly originated from an invite-only website where people can rate upcoming previews to provide movie studios with feedback. The quality was poor, but it's the real deal and still out there if you look hard enough.

Now, we have what appears to be the composer Alan Silvestri's X-Men theme from Avengers: Doomsday. This comes from a now-restricted X account that's been sharing a lot of seemingly accurate details about the movie's marketing campaign this week. 

Having looked a little further into this, it seems many of these leaks are coming from VFX companies working on Avengers: Doomsday. It's also possible that this theme is part of an upcoming sneak peek, especially with rumours swirling about a fifth teaser that should be more of a traditional trailer.

Avengers: Doomsday's X-Men team is currently comprised of Professor X, Magneto, Cyclops, Beast, Nightcrawler, Gambit, and Mystique. However, we expect Wolverine, Storm, Binary, and Jean Grey to also appear. 

If the piece of music below is fake or AI-generated, then it's incredibly convincing. Check it out below, and let us know what you think of it in the comments section.

Avengers: Doomsday officially stars Chris Hemsworth, Anthony Mackie, Winston Duke, Tom Hiddleston, Sebastian Stan, Letitia Wright, Paul Rudd, and Robert Downey Jr. Wyatt Russell, Simu Liu, Tenoch Huerta Mejia, Florence Pugh, Danny Ramirez, David Harbour, Hannah John-Kamen, and Lewis Pullman all make their Avengers franchise debuts in the movie.

The Fantastic Four: First Steps leads Pedro Pascal, Vanessa Kirby, Ebon Moss-Bachrach, and Joseph Quinn join them, as do X-Men franchise stars Kelsey Grammer, Patrick Stewart, Ian McKellen, Alan Cumming, Rebecca Romijn, James Marsden, with Deadpool & Wolverine star Channing Tatum.

Chris Evans is also officially confirmed to reprise his role as Steve Rogers. The Hollywood trades have reported that Hayley Atwell and Ryan Reynolds will appear as Peggy Carter and Deadpool, respectively.

The Russo Brothers direct Avengers: Doomsday from a screenplay by Stephen McFeely, with whom they previously collaborated on the Avengers and Captain America franchises. Loki and Doctor Strange in the Multiverse of Madness's Michael Waldron is also working on the script.

Avengers: Doomsday is set to be released on December 18, 2026, with Avengers: Secret Wars scheduled to arrive on December 17, 2027.

About The Author:
JoshWilding
Member Since 3/13/2009
Comic Book Reader. Film Lover. WWE and F1 Fan. Rotten Tomatoes-approved critic and ComicBookMovie.com's #1 contributor.
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Kadara
Kadara - 12/18/2025, 5:17 AM
It better freaking be
Gabimaru
Gabimaru - 12/18/2025, 5:19 AM
Thank God they use the xmen movie theme unlike what they used in doctor strange 2 when professor x appeared. That sound corny.
dragon316
dragon316 - 12/18/2025, 8:25 AM
@Gabimaru - didn’t pay attention to music when he came out
dragon316
dragon316 - 12/18/2025, 8:25 AM
@dragon316 - have rewatch it again
WalletsClosed
WalletsClosed - 12/18/2025, 12:30 PM
@Gabimaru - Huh? The most iconic X-Men theme sounds corny?
IAmAHoot
IAmAHoot - 12/18/2025, 3:36 PM
@Gabimaru - Hard disagree. Hearing that score still gives me chills.
Gabimaru
Gabimaru - 12/19/2025, 11:53 PM
@WalletsClosed - yeah that sound cheap
Kadara
Kadara - 12/18/2025, 5:20 AM
No one gives a flying f about a new Iron Man , retirement home Iron Man/Doom! People want to see the X mem
Urubrodi
Urubrodi - 12/18/2025, 6:05 AM
@Kadara - speak for yourself
ProfessorWhy
ProfessorWhy - 12/18/2025, 5:30 AM
That's excellent, and i like that they're saving the '97 theme for the new X-men movie
Fogs
Fogs - 12/18/2025, 7:43 AM
@ProfessorWhy - my thoughts exactly!
Conquistador
Conquistador - 12/18/2025, 5:37 AM
2000's vibes... i love it! Would be cool to throw in some hints of the X-Men animated series but im not complaining.
Spike101
Spike101 - 12/18/2025, 5:43 AM
Probably carry over as Feige chose it originally
Galloo
Galloo - 12/18/2025, 5:54 AM
Shit a trailer out or get off the pot
XelCorp
XelCorp - 12/18/2025, 6:28 AM
@Galloo - 😂😂😂😂
XelCorp
XelCorp - 12/18/2025, 6:29 AM
Holy it Sounds GLORIOUS 😭😭😭… Now carry over that Tobey Spider-Man theme as well and this might just go down as the most feels I had for any movie 😂
Doodoopaypa
Doodoopaypa - 12/18/2025, 6:43 AM
Musician here. That's AI. Sorry.
PantherKing
PantherKing - 12/18/2025, 7:56 AM
@Doodoopaypa - what gave it away?
PathosVerdesIII
PathosVerdesIII - 12/18/2025, 6:45 AM
Just a little too similar thought dont you think? basically just a tempo change with a malodic intro.I appreciate incorporating the fox THEME, but it feels a little “force awakens” over all. (by “force awakens” i mean too similar and not original enough….obviously lol)….dame it still hurts…what they did with force awakens, we wanted the next chapter of the saga and they gave us a greatest hits album. sorry rant over.
IAmAHoot
IAmAHoot - 12/18/2025, 7:43 AM
@PathosVerdesIII - You do realize this movie is largely about the Fox X-Men too right...?
beastwork
beastwork - 12/18/2025, 6:56 AM
In 2025 don't you guys feel just a little bit silly calling these releases "Leaks". I think it's just called marketing. Try not to be so dramatic.
TheVisionary25
TheVisionary25 - 12/18/2025, 7:08 AM
User Comment Image

That aside , it does sound very Silvestri-esque imo so could see it being real tbh…

If so then I quite like it!!.
PartyKiller
PartyKiller - 12/18/2025, 7:12 AM
With so much AI fakery the air mistaken from supposed trailers and leaks.

Studios should pause using YouTube until they stop letting people post fake crap they pretend is real. A fake trailer should be watermarkedvas fake and.never monetized.

Same for AI Fan fiction.
gambgel
gambgel - 12/18/2025, 7:35 AM
a X-Men article and you use only Wolverine as the image again?

lame.
whatthetruck
whatthetruck - 12/18/2025, 7:36 AM
HELL IM [frick]ING LEAKING RN TOO. WHAT A COINKYDINK. GODDAMN.
IAmAHoot
IAmAHoot - 12/18/2025, 7:42 AM
An actual orchestra!!! Sounds incredible!
Fogs
Fogs - 12/18/2025, 7:44 AM
MFs.

Just by listening to that I had goosebumps.

They're getting my money, aren't they?

Dammit.
PC04
PC04 - 12/18/2025, 8:32 AM
Pretty sure thats fake. It sounds AI'ish.
RolandD
RolandD - 12/18/2025, 8:52 AM
I suppose it could be real, but isn’t the music one thing that’s generated last so that the composer has finished film to work with?
TheVisionary25
TheVisionary25 - 12/18/2025, 8:59 AM
@RolandD - not necessarily

Depends on the composer and their process since some do it before the film even is shot just going by the script or directors vision d some even do it during as they get footage.
RolandD
RolandD - 12/18/2025, 9:31 AM
@TheVisionary25 -Sure. I know that it is sometimes run out of the order that I suggested but since there were already questions about whether this is authentic, I threw this out there.
emeraldtaurus
emeraldtaurus - 12/18/2025, 10:14 AM
Love the xmen movie theme tune. One of the few things about the original movies nobody complained about.
ThorArms
ThorArms - 12/18/2025, 11:02 AM
If real it sounds amazing

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