It is a common misconception that the Internet Archive hosts a Netflix-style library of current Hollywood blockbusters. While the Archive has a vast collection of moving images, its focus is on or legally uploaded content.
The Archive hosts a massive collection of Golden Age Comic Books . While these are not the specific modern comic runs that inspired the movie, you can find early issues of The Avengers , Tales of Suspense (Iron Man), and Journey into Mystery (Thor) from the 1960s, which are now in the public domain. These provide the historical context for the characters seen in the film.
I notice you’re looking for content related to and the Internet Archive (archive.org).
Elias sat down, his breath hitching as he typed into the primitive command line: wayback_machine --url: archive.org/details/avengers-endgame .