Surprising everyone, Marvel Studios announced this afternoon that the global release of Avengers: Infinity War will move from May 4 to April 27.

The news arrived on Twitter, with some help from Iron Man star Robert Downey Jr. The new date was confirmed with the release of a new teaser poster for the highly anticipated ensemble film.

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The exchange began innocuously enough with a tweet from the Marvel Studios account asking, "On a scale of one to infinity, how excited are you to see [Infinity War] on May 4th?" Downey responded, "Any chance I could see it earlier?," which led to the studio's big reveal: "Anything for you, Mr. Stark! How’s April 27th?"

Avengers Infinity War poster

Traditionally, Marvel Studios films premiere early in international markets ahead of their North American release, and that was also the case with Infinity War, which was scheduled to begin its global rollout on April 25 in a dozen countries, including Australia, Finland, France and Indonesia. Marvel now says Infinity War arrives April 27 "everywhere," suggesting those early dates will now be adjusted to correspond with the rest of the world.

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Staggered release dates of course invariably lead to plot details leaking online, which is undoubtedly something that Marvel and parent company Disney hope to stave off as long as possible for a film of the magnitude of Infinity War. Fans have been speculating for months about everything from character deaths to the location of the mysterious Soul Stone to how the film will set up the still-untitled sequel, all information the studio has so far managed to keep under wraps.

Directed by Joe and Anthony Russo, Avengers: Infinity War stars Robert Downey Jr., Chris Evans, Chris Hemsworth, Mark Ruffalo, Jeremy Renner, Scarlett Johansson, Anthony Mackie, Paul Rudd, Elizabeth Olsen, Tom Holland, Benedict Cumberbatch, Chadwick Boseman, Chris Pratt, Zoe Saldana, Dave Bautista, Bradley Cooper, Vin Diesel, Tom Hiddleston, and Josh Brolin. The film arrives April 27 everywhere.