This is a classic story where the storytelling, character's arcs, and the development of the plot take precedence over the visual flashiness of graphics. This kind of storytelling is special, unique, and harkens to the simpler times of the previous century in contrast to the heavy reliance on CGI in this century. In this movie, even their superhero or supervillain qualities are just a part of who they are as the very real hardships they encounter truly make up who they are as humans. Yes, they fight, as many family and friends, or cousins, may fight over their differences, but in the end, it is but a philosophical dispute.
To be clear, I am not bashing modern movies, which are also entertaining, but perhaps development of characters, the search or exploration for meaning, or the relatable human nature behind the razzle and dazzle lend a hefty hand in making a movie great or memorable. Or perhaps the stylistic features - all of the small but impactful choices like the smooth use of jazz - that went into the scenes are adding up to make this enjoyable. Those seemingly small things elevate it beyond just another superhero flick; rather, it becomes beautiful, romantic, in those moments. Rather than focusing on neato graphics, which is forgettable over time as much better graphics are hailed every year, I was left with the sense of a completed story, the closing of an arc, the end of a book - a memorable love story.