Pre-launch › First look & teaser · 23 Dec 2025 · T−360
First poster, a green stained-glass Avengers "A"
Marvel posted the first poster alongside the online teaser, with the date "12.18.26".
ConfirmedGLOBALStudio-led
Details
- Date
- 23 Dec 2025 · T−360
- Phase
- Pre-launch › First look & teaser
- Category
- Trailer & teaser
- Markets
- Global
- Led by
- Studio-led
- Channels
- X, Marvel.com
Sources 2
- Watch the 'Avengers: Doomsday' Teaser TrailersMarvel.com · 13 Jan 2026 · marvel.com · PrimaryVerifies: Online release dates of the four teasers (Dec 23, Dec 30, Jan 6, Jan 13) and the first-look poster
- Chris Evans Returns for 'Avengers: Doomsday' as Captain America With a Child, Teaser ConfirmsVariety · 23 Dec 2025 · variety.com · SecondaryVerifies: Theatre-first teaser with Avatar: Fire and Ash; leak; first poster
More from first look & teaser
28 Apr 2025 T−599
Russos' first set photo shows a chair for "Victor von Doom"
The directors marked the start of filming on Instagram with a chair labelled for Downey's character.
GLOBALReported
Russo brothers · Mystery & easter egg
Reported by fan-trade outlets; the desk has not opened the Instagram post.
25 Jul 2025 T−511
Fantastic Four credits scene shows Doom's mask
The mid-credits scene of The Fantastic Four: First Steps shows a cloaked figure holding a silver mask, read by the trades as Downey's Doom.
GLOBALReported
Studio-led · Mystery & easter egg