“Black Panther: Wakanda Forever” came into theaters with a huge responsibility: It had to address the death of Chadwick Boseman, the star of the first “Black Panther” movie, who died of cancer in August 2020. Wesley and J discuss how the film offers the audience an experience of collective grief and mourning — something that never happened in the United States in response to the losses of 2020. They interrogate what it means that this gesture of healing came from Marvel and Disney, a corporate empire that is in control of huge swaths of our entertainment, and not from another type of leadership.