I think the reason why Black Panther became such a critical and commercial success was because it was fresh and inventive. It was nice to get a comic book movie about a superhero no one really paid much attention to. Instead of a Spiderman or Batman that everyone already pretty much knows everything about, we got an obscure character who was briefly shown in the previous Captain America: Civil War.
T’Challa played by Chadwick Boseman becomes King of Wakanda and must decide if it’s best to keep the fictional African nation a secret and protected or come out of hiding and potentially help the world with the powerful meteor metal known as vibranium.
Along the way, King T’Challa (the Black Panther) is challenged by Killmonger who has a vendetta against Wakanda and the person who murdered his father. Even though he is a ruthless villain, you still empathize with his situation.
There are a lot of cool action scenes and the story is both inspiring and human, which is rare with comic book movies. Too often, you get all the glitzy visuals, but little soul.