Marvel has given fans their homework — the Avengers Doomsday watchlist, and it is shorter than anyone expected. The studio's official "Countdown to Avengers: Doomsday" collection on Disney+ names just 15 titles to watch before Avengers: Doomsday opens in theatres on December 18, 2026 — 14 movies and one TV show, Loki. The list runs from the original X-Men in…
Marvel has given fans their homework — the Avengers Doomsday watchlist, and it is shorter than anyone expected. The studio’s official “Countdown to Avengers: Doomsday” collection on Disney+ names just 15 titles to watch before Avengers: Doomsday opens in theatres on December 18, 2026 — 14 movies and one TV show, Loki. The list runs from the original X-Men in 2000 to The Fantastic Four: First Steps, and it skips most of the Marvel Cinematic Universe entirely. When @thecaughtup shared the list on November 5, the post drew more than 48,000 likes — proof that plenty of fans had been waiting for Marvel itself to tell them where to start.
Here is the post we shared on Instagram:
Watching all 15 titles takes roughly 41 hours, which sounds like a lot until you compare it with the alternative: the wider MCU now runs to 38 films plus dozens of series and specials. Marvel’s list is a hard prune, and the choices in it say as much about Doomsday as any trailer. Two Fox-era X-Men films sit at the very top. The multiverse films sit in the middle. And the newest movies — Thunderbolts*, Brave New World and The Fantastic Four: First Steps — close it out, because they set up the team walking into the fight. Here is the full list, in Marvel’s own order, and what each title actually sets up.
Key Facts
- The list: Marvel’s official “Countdown to Avengers: Doomsday” collection on Disney+ — 14 movies plus Loki Seasons 1 and 2, for 15 titles in total.
- The film: Avengers: Doomsday opens in theatres on December 18, 2026, directed by Joe and Anthony Russo, with Robert Downey Jr. returning to Marvel as the villain Doctor Doom.
- The time: Watching the whole list takes roughly 41 hours — far less than the full MCU.
- The catch: The list is Marvel’s own homework, not a fan ranking — and some famous films did not make it.
What Is on Marvel’s Official Avengers: Doomsday Watchlist?
Marvel published the list in its own watch guide on October 5, 2026, and the Disney+ collection carries the same 15 titles. The collection lives on Disney+. This is the complete list, in Marvel’s order:
| # | Title | Year | Why it matters for Doomsday |
|---|---|---|---|
| 1 | X-Men | 2000 | Introduces Professor X, Magneto, Cyclops and Mystique — the Fox mutants who return in Doomsday. |
| 2 | X2: X-Men United | 2003 | The X-Men team up with Magneto against a military threat to mutantkind. |
| 3 | Captain America: The First Avenger | 2011 | Steve Rogers becomes Captain America; the foundation of the Avengers. |
| 4 | The Avengers | 2012 | The original team assembles, with Loki as the villain. |
| 5 | Avengers: Infinity War | 2018 | Thanos wins, and half the universe vanishes. |
| 6 | Avengers: Endgame | 2019 | The team undoes the Snap; Tony Stark dies and Steve Rogers retires. |
| 7 | Loki, Seasons 1 and 2 | 2021–2023 | The TVA, the rules of the multiverse and the collapse of the Sacred Timeline. |
| 8 | Shang-Chi and the Legend of the Ten Rings | 2021 | Shang-Chi joins the Doomsday cast; the Ten Rings remain an open mystery. |
| 9 | Spider-Man: No Way Home | 2021 | The multiverse cracks open and villains cross between universes. |
| 10 | Black Panther: Wakanda Forever | 2022 | Shuri becomes Black Panther and Namor enters the story. |
| 11 | Captain America: Brave New World | 2025 | Sam Wilson’s Captain America leads the new Avengers era. |
| 12 | Deadpool & Wolverine | 2024 | The Fox universe bleeds into the MCU through the TVA and the Void. |
| 13 | Doctor Strange in the Multiverse of Madness | 2022 | Incursions explained — the multiverse’s biggest danger. |
| 14 | Thunderbolts* | 2025 | The New Avengers lineup forms. |
| 15 | The Fantastic Four: First Steps | 2025 | Marvel’s First Family arrives, and Doctor Doom appears in the post-credits scene. |
Why Does the List Start With Two X-Men Movies From 2000?
Because the mutants are not a cameo in this film — they are load-bearing. When Marvel revealed the Doomsday cast, the original X-Men actors were among the names: Patrick Stewart as Professor X, Ian McKellen as Magneto, James Marsden as Cyclops, Alan Cumming as Nightcrawler and Kelsey Grammer as Beast. That is why the list opens with the two Fox films that introduced them, 25 years before the MCU ever touched a mutant. X-Men and X2 are the only titles on the list that predate the MCU entirely, and their placement at the top is Marvel telling fans the Fox era is not background — it is the starting point. Anyone who skips them will meet half the cast as strangers.
The same logic explains the middle of the list. Loki is the only series Marvel included, because it is the one that explains how the multiverse works: the Time Variance Authority and the God of Stories himself, who ended Season 2 holding the timeline together. Spider-Man: No Way Home and Doctor Strange in the Multiverse of Madness show what happens when those rules break — villains crossing universes, and incursions, the collisions between realities that Doomsday is built around. And Deadpool & Wolverine proved the Fox universe and the MCU now share the same plumbing.
What Did Marvel Leave Off the List?
The omissions are almost as revealing as the inclusions. The Marvels is not on the list, even though it ends on a mutant-shaped cliffhanger that points directly at this era — and some fans have read its absence as Marvel guarding a spoiler. X-Men: Days of Future Past is missing too, despite being the Fox film most fans would pick first. None of the Guardians of the Galaxy films made it. Neither did Avengers: Age of Ultron, which is a strange gap given that Vision, Wanda and the team’s biggest fractures all start there. Captain America: Civil War, Black Widow and Spider-Man: Brand New Day — which opened July 31, 2026 — are all absent as well.
One entry invites a different kind of reading. Deadpool & Wolverine is the only film on the list whose leads have not been confirmed for Doomsday, which has fans treating its inclusion as a hint rather than homework. Marvel has not said whether that means anything. For now, read the list as a syllabus, not a set of clues: it tells you which characters and rules matter, and leaves the surprises for December 18.
Avengers Doomsday Watchlist: How Long Will the Rewatch Take?
The full list runs to roughly 41 hours, which works out to about five or six films a week between now and opening night if you start immediately. If you only have a weekend, the short version is Avengers: Endgame, both seasons of Loki, Thunderbolts* and The Fantastic Four: First Steps — the emotional baseline, the multiverse rules, the new team and the family most likely to clash with Doom first. Marvel’s Avengers: Endgame Encore re-release, back in theatres September 25 with new Doomsday footage, is the version the Russo brothers have called essential viewing.
Marvel is not leaving the countdown to chance. The studio’s official Countdown to Avengers: Doomsday podcast, hosted by Iman Vellani and Frank Alvarez, is rolling out new episodes weekly into December, recapping the key films one by one. Disney+ has also given the whole collection a Doctor Doom makeover, with green-tinted posters marking every title on the list. Doomsday is only the first half of the story — Avengers: Secret Wars follows on December 17, 2027 — so this homework carries into next year too. Start with the X-Men, and do not cram it in December.
Sources: Marvel (official “Countdown to Avengers: Doomsday” watch guide, October 5, 2026); Disney+ (Countdown to Avengers: Doomsday collection); The Direct (Countdown podcast episodes, November 9, 2026; Disney+ poster refresh, October 22, 2026); 9to5Marvel (essential watchlist guide, October 27, 2026); Guardians of the Fandom (watchlist guide, October 23, 2026); WIRED (runtime analysis, September 5, 2026); CBR (watchlist reveal, August 17, 2026); @thecaughtup (Instagram carousel, November 5, 2026). See also our coverage of the Avengers: Endgame Encore re-release.
