Popsugar Entertainment Avengers Endgame Longest Marvel Movies Wondering Which Marvel Movie Is The Longest? We've Got Your Answer 4 March 2019 by Amanda Prahl View On One Page Photo 6 of 20 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 Guardians of the Galaxy (2014) Runtime: 2 hours and 2 minutes Previous Next Start Slideshow Avengers EndgameCaptain MarvelMarvelMovies