Guardians of the Galaxy Vol. 2 Has the Best Superhero Movie Line, Study Says Guardians of the Galaxy Vol. 2 contains what is arguably the best line in superhero movie history: Ego's confession about killing Star-Lord's mother. The best line in superhero movie history still resides within one of the Marvel Cinematic Universe's most underrated films, according to a new analysis. Guardians of the Galaxy Vol. 2, released in 2017, contains a line that stands out for its impact and depth, even though the film is often less remembered than other MCU entries like Avengers: Endgame or Avengers: Infinity War. Why Guardians of the Galaxy Vol. 2 Stands OutSuperhero movies have produced many memorable lines over the years. The Dark Knight's line about dying a hero or living long enough to become a villain, and Spider-Man's line about great power and great responsibility, are both much-quoted moments. However, some of the strongest lines are in films that audiences remember less clearly. Guardians of the Galaxy Vol. 2 is one such film, and its best line is a prime example of how powerful superhero storytelling can be.The line in question comes from Ego, Star-Lord's father, who is revealed to be the film's central villain. Ego's plan to use other planets to feed upon and destroy is steadily revealed throughout the film. He explains to a then-brainwashed Peter that his mother is the only person who ever made him consider stopping his plans, because of how much he loved her. Then, Ego casually mentions that it broke his heart to put that tumor in her head, revealing that he was the one who killed Star-Lord's mother to ensure he could keep focused on his efforts to take over the galaxy.The Impact of Ego's Confession on the MCUThis revelation immediately changes the context of Star-Lord's past. Rather than simply being kidnapped by Yondu right after his mother's death, it becomes clear that this was seemingly intentional timing, since Yondu was sent by Ego, and Ego would have known Meredith's time was short. The line also has plenty of plot significance, as it breaks Star-Lord out of the mind control Ego has him under and means he turns on his father in quick fashion, setting the stage for the film's ending.It also serves as a way to bond the Guardians together further as Star-Lord's new family of sorts, as they unify against Ego to stop him after this point, cementing the idea that family is about more than blood or biological relation. The moment is a great gasp-inducing line for audiences who may have still held out hope Ego could be redeemed. It is also a striking moment because it manages to be at once breathtakingly awful and so surreal it has a dark kind of comedy to it.How the Line Elevates Superhero StorytellingSuperhero movies are often derided as being lesser stories that rely on over-the-top action scenes to keep audiences engaged. But Guardians of the Galaxy Vol. 2 is a prime example of how they can be much more than that, especially when looking at Ego's line and how it packs a true punch without having to feature any action or fighting at all. In one fell swoop, the film makes Ego into a truly unforgivable villain, flips his dynamic with Star-Lord on its head, and reveals the true evil of the movie's villain by him confessing that he is capable of understanding the harm he is doing to those around him and the pain he is causing, but that he simply values growing his own power more than anything else.This effectively seals Ego's doom long before he actually is killed in the MCU movie, and makes Guardians of the Galaxy Vol. 2 even more worth watching again and again, as knowing the twist and when exactly it hits makes scenes before and after all the more interesting on a repeat viewing. The line's effectiveness underscores the film's often underappreciated nature and highlights how strong superhero movie storytelling can really be.