When Avengers: Infinity War hits theaters next year, it promises to take the Marvel Cinematic Universe to entirely new heights. That might, according to two of the film's stars, include a pretty lengthy fight scene.

During a recent interview with GMA, which you can watch above, Sebastian Stan (Bucky Barnes/Winter Soldier) and Anthony Mackie (Sam Wilson/Falcon) hinted that the film will have a longer battle sequence than fans might expect.

"I heard a rumor," Stan revealed, "that there was a half hour battle sequence."

"Probably." Mackie added. "Probably a one-hour battle sequence."

With both stars last appearing in the large ensemble of Captain America: Civil War, the actors reassured that it will go even further in terms of scale.

"Somebody asked whether or not it was going to match or be bigger than the airport sequence that we had in Civil War." Stan explained. "Yeah, it will be way better and worse than that."

"Much bigger." Mackie echoed. "Imagine twenty-five airports all put together, with 100 Avengers."

Fans will have to wait and see those impressive battle sequences when Avengers: Infinity War premieres in theaters on May 4, 2018.

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As the Avengers and their allies have continued to protect the world from threats too large for any one hero to handle, a new danger has emerged from the cosmic shadows: Thanos. A despot of intergalactic infamy, his goal is to collect all six Infinity Stones, artifacts of unimaginable power, and use them to inflict his twisted will on all of reality. Everything the Avengers have fought for has led up to this moment - the fate of Earth and existence itself has never been more uncertain.

Avengers: Infinity War is described by Marvel Studios as the culmination of everything in the Marvel Cinematic Universe since Iron Man in 2008. The movie is filming now under directors Anthony and Joe Russo, from a screenplay by Christopher Markus and Stephen McFeely.

The expansive confirmed cast includes Robert Downey, Jr., Chris Evans, ChrisHemsworth, Mark Ruffalo, Jeremy Renner, Scarlett Johansson, Tom Holland, Elizabeth Olsen, Paul Bethany, Sebastian Stan, Benedict Cumberbatch, Benedict Wong, Chris Pratt, Zoe Saldana, Karen Gillan, Vin Diesel, Dave Bautista, Bradley Cooper, Pom Klementieff, and Josh Brolin as the villain Thanos.Avengers: Infinity War and its as-yet-untitled sequel are filming back-to-back for a May 4, 2018 and May 3, 2019 release, respectively.

Are you excited for Avengers: Infinity War? Rank your anticipation below!