This summer, Marvel will kick off its highly-anticipated Phase Three with Captain America: Civil War, which hits theaters on May 6, signalling the start of the summer movie season. This massive superhero adventure will not only re-unite practically every character in the Marvel Cinematic Universe, with the notable exceptions of Hulk (Mark Ruffalo) and Thor (Chris Hemsworth), but it will also introduce fans to the new MCU version of Spider-Man, portrayed by Tom Holland. Last night, Marvel's own Louis D'Esposito shared a new photo on his Twitter page, which features himself and Tom Holland, who appear to be on an Avengers Quinjet.

Louis D'Esposito wouldn't clarify where, and when, for that matter, this photo was taken, but fans on Twitter have been replying to this tweet with a variety of suggestions. It's possible that Captain America: Civil War could be undergoing reshoots right now, but that hasn't been confirmed as of yet, nor has the presence of a Quinjet in the movie. The last time we saw a Quinjet is when Hulk commandeered one of these ships at the end of Avengers: Age of Ultron, taking off for parts unknown, but it's still possible that there could be a Quinjet in Captain America: Civil War.

Another possibility is that Tom Holland and Louis D'Esposito could be on the Milano set from Guardians of the Galaxy Vol. 2, which is getting ready to start production in Atlanta very soon. Then again, Spider-Man hasn't been confirmed as part of this movie either, but since there is so little we know about this sequel, it's possible that he could be a part of the movie. It's also worth noting that, last month, Louis D'Esposito shared another photo with Tom Holland on the set of Doctor Strange, alongside director Scott Derrickson.

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Kevin Feige previously teased that they have big plans for Spider-Man in the MCU, and it is widely believed that he will pop up in other Phase Three movies. Both Marvel and Sony are producing the new Spider-Man movie, which has been set for release on July 7, 2017, which the studio just shifted from a July 28, 2017 date. It's possible this photo could be taken from the set of this new stand alone movie, but it hasn't been confirmed when production will actually get under way. Jon Watts is directing Spider-Man from a script by John Francis Daley and Jonathan M. Goldstein (Vacation).

Do you have any theories about where this photo was taken? There are certainly several feasible possibilities, but don't expect anyone from Marvel to confirm the setting of this photo. Many fans have been hoping to see a first look at the new Spider-Man costume soon, but Captain America: Civil War directors Joe Russo and Anthony Russo recently teased that fans won't get to see the new Spidey until their movie opens on May 6. While we wait for more details, take a look at this new image below.