Pre-launch › Trailer campaign · 06 Jan 2026 · T−346
Teaser 3, "The X-Men Will Return"
Patrick Stewart, Ian McKellen and James Marsden return as Professor X, Magneto and Cyclops, the first footage of the Fox X-Men in the MCU.
ConfirmedGLOBALPatrick Stewart · Ian McKellen · James Marsden
Details
- Date
- 06 Jan 2026 · T−346
- Phase
- Pre-launch › Trailer campaign
- Category
- Trailer & teaser
- Markets
- Global
- Led by
- Studio-led
- Partners
- Patrick Stewart, Ian McKellen, James Marsden
- Channels
- Cinema, YouTube
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
- The X-Men Will Return | Avengers: Doomsday in Theaters December 18, 2026Marvel Entertainment (YouTube) · 06 Jan 2026 · youtube.com · PrimaryVerifies: Third teaser online
More from trailer campaign
16 Dec 2025 T−367
Teasers leak before their cinema debut
Descriptions of all four teasers and grainy footage of the first spread online days before they played with Avatar: Fire and Ash.
GLOBALReported
Fan / organic
18 Dec 2025 T−365
Russos post a countdown exactly one year out
At 365 days to release, the directors posted a digital clock that glitched to "DOOMSDAY" for one frame.
GLOBALReported
Russo brothers · Mystery & easter egg
18 Dec – 23 Dec 2025 T−365
Standout
Teaser 1, "Steve Rogers Will Return", plays only in cinemas first
A wordless teaser of Steve Rogers on a farm with a baby played before Avatar: Fire and Ash, then went online five days later with a countdown card.
GLOBALConfirmed
Chris Evans