Marvel has released a brief teaser for Avengers: Doomsday featuring new dialogue from Pedro Pascal's Reed Richards and Vanessa Kirby's Sue Storm, suggesting the Fantastic Four are racing against time in the upcoming film. The clip contains no new footage but splices fresh audio into a scene from last year's The Fantastic Four: First Steps, and arrives just ahead of Marvel's major panel at San Diego Comic-Con this weekend, where more details on the film are expected.

The teaser opens with Reed Richards giving a tour of the Baxter Building and mentioning the family's weekly Sunday dinners, before cutting away to Storm asking "How long do we have?" and Richards replying "Not long." Speculation points to a link with the post-credits scenes from First Steps and Thunderbolts*/The New Avengers involving Doctor Doom and young Franklin Richards, or possibly the multiverse-collapsing "Incursions" storyline. Avengers: Doomsday runs 2 hours 45 minutes and is due in cinemas on 18 December, with tickets expected to go on sale this week.