One fan, who was likely re-watching Avengers: Infinity War on homed media noticed that the score playing when Tony Stark speaks to Pepper Potts on Ebony Maw’s ship is the same one that plays when Steve Rogers spoke to Peggy Carter aboard Red Skull’s plane in Captain America: The First Avenger.
Earlier this year, Avengers: Infinity War was a rare release that promised to be a major milestone of the entire franchise, bringing together most of the Avengers with the Guardians of the Galaxy to defeat the towering Thanos as he sought to gather the Infinity Stones into his Infinity Gauntlet.
As the Marvel Cinematic Universe has grown in the past decade, there have been so many memorable moments, it can begin to be difficult to catch when the filmmakers call back to them in the newest films.