New photos from the set of the untitled Avengers movie ignited a wave of speculation as some of Marvel Studios' most popular heroes joined Captain America, who was sporting his classic uniform.
While some thought this indicated a flashback, time-travel, or maybe even resurrections of characters who die in Avengers: Infinity War, it's hard to tell at this point. But someone noticed an interesting detail in the photos, which could have huge implications for the film's plot.