Marvel Studios had planned a special four-part teaser rollout for Avengers: Doomsday, but the studio faces a setback as three out of the four teaser clips have already surfaced online.

Marvel made the somewhat baffling decision to produce theatrical-only teaser trailers for Avengers: Doomsday, a full year ahead of release. Now, of course, they have leaked online. Spoilers follow, although no one can be blamed for that but Marvel.

Avengers: Doomsday directors Joe and Anthony Russo have posted a fresh tease for their upcoming Marvel blockbuster, exactly a year before it arrives in theaters — and featuring a countdown clock seen in the movie's apparently-leaked first trailer.

In a surprise move, Marvel has confirmed dates for two Avengers movies releasing in 2026, which fulfills an abandoned plan for Phase 6.