Avengers Doomsday San Diego Comic-Con poster featured " data-image-caption="" data-large-file="https://www.comicsbeat.com/wp-content/uploads/2026/07/Avengers-Doomsday-San-Diego-Comic-Con-poster-featured-1000x583.jpg" />The trailer dropped ahead of Marvel's SDCC panel on July 25, and tickets are now on sale ahead of the film's release on December 18.Source: https://www.comicsbeat.com/sdcc-avenger ... y-trailer/