The continuity fanatics of the Marvel Cinematic Universe can now put one long-standing mystery to rest. Guardians of the Galaxy director James Gunn has just revealed a new piece of information to tie up a loose plot thread that has been dangling ever since Captain America: The First Avenger.On Twitter, the director was asked how it was possible for actress Laura Haddock, who plays Peter Quill's mother Meredith in Guardians of the Galaxy Vol. 1 and Vol. 2, to also appear in the "Star Spangled Man With A Plan" sequence in The First Avenger, a movie that was set in the 1940s.RELATED: An Avengers 4 Pregnancy Would Give an MCU Original the Perfect Sendoff"That's Quill's grandma," the director revealed, before jokingly adding "I just made this up." James Gunn does of course appear to be joking, but that doesn't stop the revelation from being possibly true. Some fans truly get hung up on trivial 'mistakes' like this, and this does offer them an in-universe explanation.

The real truth is that Laura Haddock was simply cast for a small role in The First Avenger, back when Marvel had no idea that a Guardians of the Galaxy movie would get made. But it turns out that she was also the perfect actress to bring to life Meredith Quill.

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The continuity of both films would appear to line up this way -- one taking place in the '40s and the other's flashbacks in the '80s -- meaning that yes, Star-Lord's grandma might have met Captain America during his tour across the country.