Big changes are nothing new in the tentpole movie business, but the sprawling mega-entity that is the Marvel Cinematic Universe seems to be particularly prone to them. In 2021 alone, Marvel Studios pushed back its entire 2022 slate, while individual movies like Sam Wilson's (Anthony Mackie) unfortunately forgettable solo movie debut, "Captain America: Brave New World," wound up being pushed back and tinkered with so much that we have a separate article detailing every actor and moment cut from the "Captain America" sequel during its borderline cursed production process.

Now, it appears that the biggest and most important MCU projects on the horizon have joined the ever-expanding list of Marvel Studios movies that aren't proceeding as originally announced. Per Deadline, the Russo Brothers' 2026 MCU team-up "Avengers: Doomsday" has been pushed from its originally announced theatrical release date of May 1, 2026, to December 18 of that year. Its follow-up, "Avengers: Secret Wars," has received...