Eternals' post-credits scene secretly sets up the origin and history of vampires within the Marvel Cinematic Universe. With a massive cast, Eternals rightly focused on its stars—the group of ancient aliens who had been sent to Earth to protect humanity from the Deviants some 7,000 years ago.
For all that's the case, though, Eternals was also in part about the MCU debut of the Black Knight, played by Game of Thrones star Kit Harington. In the comics, Dane Whitman isn't just Sersi's human lover,
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