There are 31 hours of Marvel Cinematic Movies that predate Avengers: Infinity War.
And while the marathon would be fun, few fans actually have time for that refresher course.
Fortunately, a list of the essential 8 movies fans should review for the film has been assembled.
Captain America: The First Avenger, The Avengers, Captain America: Civil War, Doctor Strange, Thor: Ragnarok, Guardians of the Galaxy, Guardians of the Galaxy Vol. 2, Black Panther.