[MILD SPOILERS for Captain America: Civil War ahead.]
Anthony and Joe Russo have officially gotten the cameras rolling on Captain America: Civil War, their second Marvel feature film (after The Winter Soldier) and the start of Phase III for Marvel's Cinematic Universe. The official cast and crew on the project have already been announced, so it was only a matter of time before photos showing them on set leaked online.
The Civil War storyline revolves around a government effort to more strictly regulate the actions of not just Steve Rogers (Chris Evans), Natasha Romanoff (Scarlett Johansson), and their current Avengers squad - but ALL Earth-based superheroes in the MCU. Hence, this movie serves as the entry point for T'Challa/Black Panther (Chadwick Boseman), following Earth's Mightiest having learned about his homeland - the African nation of Wakanda - in Avengers: Age of Ultron.
The Atlanta Journal Constitution has posted images from the Civil War set in Atlanta, showing what appears to be a historical version of London - complete with period settings (vintage automobiles, etc.), double-decker buses, and an Irish pub that's been turned into an English pub - for, reportedly, a flashback sequence in the film. Additional images from the Civil War shoot in Atlanta (hat tip CBM) show set pieces for what is almost certainly a smaller Wakanda village, just outside the more urbanized regions of the country, similar to Johannesburg (where the Hulk/Hulkbuster fight took place in Age of Ultron).
Civil War will, in addition to kicking off Phase III of the MCU, continue to develop plot threads from the previous Captain America movies. It's possible, then, that this England flashback sequence will involve Bucky Barnes (Sebastian Stan), providing more details about his dark deeds back when he was The Winter Soldier. Alternatively, as has often been the case with MCU flashbacks, the scene here could involve Peggy Carter (Hayley Attwell), who is expected to next pop up onscreen alongside the younger Hank Pym (played as an older man by Michael Douglas) in this summer's Ant-Man.
Speaking of Peggy - leaked images and videos showing a funeral scene being filmed in Civil War's present-day setting - attended by the likes of Steve Rogers and Sharon Carter/Agent 13 (Emily VanCamp) - have already fueled speculation that it's the elderly Peggy's passing that's being mourned here. There are certainly other possibilities, but for the time being the wake in question is most likely for (the original) Agent Carter.
We've embedded one such image, below. For additional photos/videos from the Civil War funeral scene being filmed, GO HERE.