Avengers 4 filming has wrapped, with reshoots finishing earlier this month.
But it turns out those pesky Marvel bosses managed to keep a new cast member under wraps.
It has been confirmed that Katherine Langford has joined the cast of Avengers 4, having filmed scenes in a unknown role.
The 22-year-old is best known for her role in Netflixs 13 Reasons Why, in which she played Hannah Baker, a high school student who left behind a series of tapes to her friends and enemies after taking her own life.
The actress appeared in series two of the hit teen show, but will not be returning for the third series.
The secrecy surrounding Katherines role in Avengers 4 could mean she has a significant part to play in the as-yet unnamed blockbuster… or it could mean shes working in a shawarma restaurant. We guess well have to wait until April – or until Mark Ruffalo or Tom Holland drops a spoiler – to find out.
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However, one thing we do know about the film is that flashbacks will play a part.
Frank Grillo confirmed the spoiler as he revealed his character Brock Rumlow will be in the cast. Rumlow, aka Hydra agent and terrorist Crossbones, will be in the hotly-anticipated sequel to Infinity War, despite dying in Captain America: Civil War – meaning time will be messed with in Avengers 4.
Speaking on the UFC Unfiltered Podcast, Grillo said: He makes an appearance in the next Avengers movie.
But its a flashback … Im allowed to say whatever I want because Im never doing another Marvel movie.
This pretty much confirms the theory Marvel fans have had since on-set pictures saw Chris Evans in New York, dressed in Captain Americas old costume – suggesting that we will flash back to the Battle Of New York, seen in 2012s The Avengers.
It is unknown if this confirmed flashback will simply be a flashback, or part of a time-travel plot to defeat Thanos and reverse the effects of his Infinity Gauntlet snap.
Michael Douglas previously confirmed that the Quantum Realm – where Scott Lang was left stranded at the end of Ant-Man and The Wasp – will play a key role in Avengers 4.
The Quantum Realm, as described by Hank Pym, is a reality where all concepts of time and space become irrelevant as you shrink for all eternity. You can get to the alternate dimension via subatomic shrinking caused by the Pym Particles – which is what happened to Janet Van Dyne and Scott Lang – or by using a Sling Ring.
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Who has a Sling Ring? Doctor Strange. Of course, Strange was eliminated in the Thanos snap, but Lang was left suspended in the Quantum Realm at the end of Ant-Man and The Wasp.
With Pym, Janet and Hope all dusted as well, it is expected that Lang will go back in time to attempt to stop the snap.
Weight was added to this theory after Paul Rudd was pictured filming alongside Robert Downey Jr in a Battle Of New York scene, a battle which Ant-Man was not at in the first place.
Well get our first look at Avengers 4 when the trailer drops before the end of the year.
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