Spider-Man on the page and in "Brand New Day."Marvel Unlimited/SonyThe Marvel Cinematic Universe has been going strong since "Iron Man" in 2008.But Marvel heroes have been around since as early as 1941.We compared every Avenger (or honorary Avenger) in the MCU to their comic-book counterpart.The Marvel Cinematic Universe is, for better or worse, sticking around through at least December 2027, with the release of "Avengers: Secret Wars," the sequ…