Overview
- Marvel officially released the third teaser after it played before Avatar: Fire & Ash, following days of online leaks.
- The footage features the abandoned Xavier Mansion, a chess meeting and handshake between Xavier and Magneto, Cyclops unleashing a massive optic blast, and a distant mechanical figure that appears to suggest a Sentinel.
- Returning X‑Men actors include Patrick Stewart, Ian McKellen and James Marsden, with Kelsey Grammer, Alan Cumming, Channing Tatum and Rebecca Romijn also appearing.
- The film assembles Avengers, the Fantastic Four and Thunderbolts alongside the X‑Men, with multiple reports positioning Robert Downey Jr.’s Victor von Doom as the primary antagonist.
- Marvel lists a global theatrical release on December 18, 2026, with some territories citing regional openings a day earlier, and separate reports note a new leaked teaser featuring Namor circulating online.