Like video essayist Jonathan Burdett said in his series of video essays on the Marvel Cinematic Universe, the films are built on the power of character (Burdett, 00:00:46 - 00:01:43). If we didn’t invest in the characters and find them compelling, we wouldn’t have cared about these characters when Iron Man (Robert Downey Jr.), Thor (Chris Hemsworth), Captain America (Chris Evans), Black Widow (Scarlett Johanson), and Hawkeye (Jeremy Renner) joined together in 2012 in Marvel’s The Avengers (Joss Wheaton). We also wouldn’t have cared when many of our beloved heroes disappeared because of the machinations of the Mad Titan Thanos (Josh Brolin) in Avengers Infinity War (Anthony and Joe Russo, 2018).
Burdett, Jonathan, director. Marvel's Super-Powered Characterization. YouTube/ Films&Stuff, YouTube, 17 Aug. 2018, www.youtube.com/watch?v=zDJQs7GK6hU.
Goldberg, Matt, host. The Collider.com Podcast; Episode 196 – ‘Avengers: Endgame’. Collider.com, April 23, 2019. http://collider.com/podcast-avengers-endgame/#poster
Marvel's Biggest Baddie Just Wants To Be Your Daddy (Avengers: Infinity War). YouTube/ Just Write, YouTube, 30 Apr. 2018, www.youtube.com/watch?v=72QQsWm7yFk.