The document discusses various ways that Captain America references and alludes to other works through intertextuality. It references films that director Joe Johnston worked on like Raiders of the Lost Ark and Star Wars. It also references the broader Marvel Cinematic Universe that Captain America is part of, including through Easter eggs in other Marvel films. Additionally, it self-references the Captain America comics and TV show. These intertextual references help market the films and add extra layers for fans to engage with.