Marvel Cinematic Universe mainstay Samuel L. Jackson reveals Nick Fury's S.H.I.E.L.D. business card is everything you imagined, as it reads "Fury," and in place of his title, it states simply -- but accurately -- "Bad Motherfucker." However, the actor's Instagram post contains additional photos that raise a major question: Which Marvel Studios film is this for? Our money's on Spider-Man: Far From Home.

The post, which bears the location of Watford, United Kingdom, also includes photos of Fury's facial hair and eye patch, and a close-up of Jackson's face, complete with scar makeup. Those details would seemingly rule out Captain Marvel, which wrapped principal photography last week. Set in the 1990s, before the injury to Fury's left eye, the film is expected to employ CGI effects similar to what was used for Ant-Man and The Wasp's flashbacks to make Jackson appear younger.

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"Back to the familiar, the comfortable, the lovably fierce!" Jackson wrote, presumably referencing the return to his traditional Fury look after Captain Marvel. "Loving today’s mood!"

Back to the familiar, the comfortable, the lovably fierce! Loving today’s mood!#Can’tkeepagoodmandown#deliriouslyfurious

A post shared by Samuel L Jackson (@samuelljackson) on

It's certainly possible that Jackson is involved in reshoots for Avengers 4, as his Fury was last shown on screen alongside Cobie Smulders' Maria Hill in the post-credits scene of Avengers: Infinity War. There, following the finger snap by Thanos that wiped out half of all life in the universe, Fury and Hill fade away, but not before he signals Captain Marvel.

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However, it more likely signals that Jackson is reporting for duty on the set of Spider-Man: Far From Home, which began filming earlier this month in London. We've known for more than a year that Robert Downey Jr. won't reprise his role as Tony Stark for the Spider-Man: Homecoming sequel, but that another Marvel hero will instead co-star. Benedict Cumberbatch recently ruled out Doctor Strange, which may leave Nick Fury to fill the role of Peter Parker's mentor.

That sort of relationship was explored in Marvel's animated Ultimate Spider-Man, in which Fury offers Peter Parker, still fledgling hero, an opportunity to train alongside four other teen superheroes.

Including Captain Marvel, which arrives in March 2019, Jackson has appeared in 10 MCU films, as well as on Marvel's Agents of S.H.I.E.L.D.

Directed by Anna Boden and Ryan Fleck from a script they wrote with Liz Flahive, Carly Mensch, Meg LeFauve, Nicole Perlman and Geneva Robertson-Dworet, Captain Marvel stars Brie Larson as Carol Danvers, Samuel L. Jackson as Nick Fury, Jude Law as Mar-Vell, Clark Gregg as Phil Coulson, Lee Pace as Ronan the Accuser, Djimon Hounsou as Korath the Pursuer, Gemma Chan as Minn-Erva, and Ben Mendelsohn, Lashana Lynch, Algenis Perez Soto, McKenna Grace and Annette Bening in as-yet-undisclosed roles. The film arrives March 8, 2019.