Avengers: Endgame
Avengers : Endgame ’s time travelhas been explained by both the film ’s author and directors , who do n’t seem able to agree on just how it works . The special bone of contention is likely the very end of the movie , which established that Steve Rogers had journey back in metre to live out the rest of his life sentence with his beloved Peggy Carter . The Russo sidekick have insist thatSteve created a parallel timelinewhen he travel back , and that he somehow made the jump back to the normal reality to turn over over the Captain America shield to Sam . In dividing line , writers Christopher Markus and Stephen McFeelybelieve that only the removal of the Infinity Stones creates a new timeline , meaning that Steve Rogers was Peggy Carter ’s secret husband in the MCU all along . This certainly explains why an older Peggy had photo of Steve at her bedside , but none ( apparently ) of her actual husband .
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A late interview with Tilda Swinton has hinted at just why there was all this muddiness ; it ’s becauseMarvel change the rules partway through yield . Swinton ’s Ancient One made a abbreviated appearance inAvengers : Endgame , giving the Hulk an infodump on the MCU ’s temporal automobile mechanic . It ’s one of the key second in the picture show , limn the basic rule and including a nifty visualization .
Swinton shot her original picture on a summer day , then a year later was called back for reshoots because an important plot of land point had been changed . grant to Swinton , it was " all about that very , very authoritative " visual timeline gist , and her revise cable stressed that the Infinity Stones had to be returned . ground on what she said , that dialogue was setting up Captain America ’s prison term travel plan at the end ofAvengers : Endgamethat leads him to Peggy Carter . Markus and McFeely have insistedCap ’s ultimate fate was decided the right way from the first draft , but it looks as though the Infinity Stones idea was bestow in gild to justify it .
That said , it ’s possible the issue will only be resolve further down the line of products . Spider - Man : Far From Homeis at least claim to be dally with the estimate of the Multiverse , although it ’s definitely possible thatMysterio is lie about his alternative dimension parentage story . If Mysterio is telling even half the truth , though , it would hint that the MCU consists of unnumberable branching realities . This have-to doe with more to Thanos ' snap bean than it does fourth dimension travel , but surely means the Ancient One was presumably over - simplifying in her explanation to the Hulk .
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Supporting this , Marvel Studios is working on an animatedWhat If?TV seriesfor the Disney+ streaming service , exploring alternate MCU events . While it ’s riffing on idea from the comics , this could be described as a product of different timelines . That would suggest the Russos are right - and potentially even means the series could search the new timeline Captain America created when he went back to the 1940s to live with Peggy Carter .
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