Avengers: Endgame Encore, Explained: What's Actually New in the Doomsday Setup Re-Release

Avengers: Endgame is going back to theaters. On September 25, 2026, Marvel Studios is re-releasing the 2019 finale as "Avengers: Endgame Encore," a theatrical run built around new footage shot during production of Avengers: Doomsday and packaged with format-exclusive extras that weren't part of the original release. The move was officially unveiled at CinemaCon 2026, with Kevin Feige, Joe Russo, and Anthony Russo all present to introduce it.
That's a notable amount of star power for what is, on paper, a re-release of a seven-year-old movie. But Endgame Encore isn't just a nostalgia lap. It's a deliberately timed marketing beat ahead of Doomsday's own December debut, and it comes with enough genuinely new material that it's worth separating what's actually different from what's just repackaging.
What Endgame Encore Actually Is

Strip away the framing and the core fact is simple: this is Avengers: Endgame, the same film that closed out the Infinity Saga in 2019, returning to theatrical screens with additional footage spliced in. According to the CinemaCon unveiling, that new material was filmed during production of Avengers: Doomsday specifically for this re-release, rather than being deleted scenes recovered from the original 2019 shoot. That distinction matters. This isn't an extended cut assembled from an editing-room floor — it's new photography, shot years after the fact, built to bridge the original film toward the story Marvel is telling next.
The runtime reflects that addition. Endgame's original theatrical cut ran 181 minutes. The Encore version runs approximately 185 minutes, putting the new material at roughly four extra minutes. Four minutes doesn't sound like much stacked against a three-hour movie, but in the context of a finished, released, thoroughly dissected blockbuster, any new footage at all is a meaningful event — especially footage that was shot specifically to connect to a film releasing three months later.
The Format Play: IMAX and "Infinity Vision"
Beyond the runtime, the bigger differentiator is where and how you can see it. Endgame Encore is being released in IMAX as well as a new format certification Marvel and its partners are calling "Infinity Vision," described as a Premium Large Format designation. Premium Large Format screens generally mean a bigger image, upgraded sound, and a more controlled presentation than a standard auditorium — the kind of screen upgrade studios increasingly lean on to make a theatrical re-release feel like an event rather than just a rerun.
The format choice isn't incidental to the marketing strategy here. Both IMAX and Infinity Vision screenings come with an additional exclusive: a sneak peek at Avengers: Doomsday, which isn't available on standard screenings of the Encore. That's a fairly aggressive way to funnel ticket buyers toward premium-format showtimes, and it signals that Marvel sees this re-release less as a stand-alone nostalgia play and more as the first phase of Doomsday's actual marketing rollout.
Why This, and Why Now
Re-releasing a hit film ahead of its sequel isn't a new tactic. Studios have used theatrical re-releases as marketing vehicles for years, from Disney's periodic Star Wars re-releases to Marvel's own prior practice of packaging bonus footage with theatrical reissues around major franchise milestones. What makes Endgame Encore a bit more pointed is the specific film being brought back. Endgame isn't just any prior MCU entry — it's the culmination of the Infinity Saga, the film that killed off or wrote out several of the franchise's founding characters, and the emotional high-water mark most casual moviegoers associate with the entire Marvel Cinematic Universe.

Bringing that film back into theaters, with new footage stitched in specifically to connect it forward to Doomsday, is Marvel making an explicit argument to audiences: the story that ended here is about to matter again. Doomsday's ensemble reportedly spans multiple corners of the larger Marvel multiverse, including reported connections to X-Men and Fantastic Four characters, and re-anchoring audiences in Endgame right before that film's December release is a way of reminding ticket buyers what "the Avengers assemble" actually felt like the last time the stakes were this high.
Endgame's Original Cultural and Box Office Footprint

It's worth stepping back and remembering exactly what film is being re-released here, since that context is a large part of why this re-release carries any weight at all. When Avengers: Endgame opened in April 2019, it became one of the highest-grossing films ever made, closing out over a decade of interconnected MCU storytelling that began with 2008's Iron Man. It was, at various points following its release, cited as the highest-grossing film of all time worldwide, a title it has since traded with re-releases and inflation-adjusted competitors like Avatar. Regardless of exactly where it currently sits on that all-time list, Endgame remains one of a small handful of films that functioned as a genuine global cultural event — theaters running near-continuous overnight showings, widespread spoiler-avoidance campaigns online, and a marketing rollout built explicitly around asking audiences not to reveal what happens.
That scale of cultural saturation is part of why Endgame Encore functions as a marketing tool in a way a re-release of a lesser MCU entry couldn't. Audiences don't need to be reminded what Endgame is or convinced it's worth revisiting — the film's reputation already does that work. What the re-release adds is a reason to do it now, specifically, ahead of Doomsday.
The Trailer Numbers Claim, and Why It Needs a Caveat
Some of the coverage around Endgame Encore's rollout has leaned on a striking statistic: according to Murphy's Multiverse, the re-release trailer reportedly quadrupled the all-time record for re-release trailer views. That's a dramatic number, and if accurate, it would suggest the announcement generated an outsized amount of organic attention relative to typical re-release marketing.
It's worth being direct about the sourcing here, though. That figure comes from a single outlet, and as of this writing it hasn't been independently corroborated by other trade press or confirmed with a specific view count from Marvel, Disney, or a platform like YouTube directly. "Quadrupled the record" is the kind of claim that's easy to state and hard to verify without knowing exactly what the previous record was, which platforms are being counted, and over what time window. Treat it as a notable, plausible data point given Endgame's fanbase and cultural footprint, not as a confirmed, sourced fact.
Is the Rewatch Worth It
For anyone weighing whether to actually buy a ticket, the honest answer depends on what you're looking for. Four minutes of new footage isn't going to fundamentally change how Endgame plays as a three-hour finale, and nothing in the official unveiling suggests the new material alters the film's existing plot or ending. What it does offer is a connective thread toward Doomsday, presumably framing or teasing story elements that carry forward into the next film, plus the format-exclusive Doomsday sneak peek that isn't available anywhere else yet.
If you're the kind of MCU fan who's going to see Doomsday in December regardless, the Encore functions as a low-stakes way to get an early, theater-exclusive look at footage from that film, on top of revisiting one of the franchise's biggest achievements on an IMAX or Infinity Vision screen. If your interest in the MCU is more casual, four extra minutes and a sneak peek probably isn't enough on its own to justify a second full theatrical viewing of a film most people have already seen multiple times since 2019 on streaming and home video.
What Comes Next
Endgame Encore is a three-month runway, not the main event. Avengers: Doomsday is currently set for a December 18, 2026 release, and the sneak peek attached to Endgame Encore's premium-format screenings is, as of now, the first piece of official theatrical footage from that film to reach audiences. Expect that footage, once it starts circulating in fan reactions and press coverage following September 25 screenings, to shape a meaningful chunk of the pre-release conversation heading into Doomsday's December debut. Marvel has spent the better part of this year rolling out cast confirmations and marketing beats for Doomsday in stages — the Endgame re-release is simply the latest, and most nostalgia-driven, entry in that rollout.
Avengers: Doomsday arrives December 18, 2026, and the Encore's IMAX and Infinity Vision sneak peek is the first official theatrical footage from that film.