Marvel Studios released the first trailer for Avengers: Doomsday at D23, featuring a dramatic line delivered by Robert Downey Jr. as Doctor Doom: "All of you have lived stolen lives." This line has sparked widespread fan theories about the film's plot.
According to reports from the event, the trailer shows a devastated world, Sentinels, and numerous cameos. The line is spoken by Doom, who appears in a post-credits scene of Fantastic Four: First Steps (2025), where he is revealed as a variant of Tony Stark from another universe.
Industry analysts suggest the line implies that the main MCU timeline is a construct, and Doom intends to reveal the truth to the Avengers. This aligns with the multiverse saga's theme of alternate realities and the concept of "incursions" from the comics.
As of August 2026, Marvel has not officially confirmed the meaning, but the line is widely interpreted as a threat to dismantle the heroes' reality. The film is scheduled for release on May 1, 2027.
