MCU: 14 Things You Learn Rewatching Captain America: Civil War
4. Black Panther And Zemo Is An Amazing Scene
The exchange at the end between T'Challa and Zemo is one of the film's best, despite how low-key it is compared to the spectacles that come before it. And it's at the heart of not just the key themes in Civil War, but also in Black Panther - whose final scene between T'Challa and Killmonger directly parallels it.
It marks the culmination of T'Challa's arc in this movie: he starts as a ball of rage who "evolves" to a position that more closely reflects what another Marvel movie says about vengeance. In Sam Raimi's Spider-Man, Aunt May says that "Uncle Ben meant the world to us, but he wouldn't want us living one second with revenge in our hearts. It's like a poison. It can take you over. Before you know it, it can turn us into something ugly."
That quote fits T'Challa's drive, Zemo's arc and Tony's transformation in the final act and it's a great choice to have Black Panther's revelation play alongside Tony losing himself the other way.