Ta-Nehisi Coates is sponsoring a fascinating conversation between himself, New York Times film critic A.O. Scott, and historian Kate Masur about the film Lincoln. It’s a real treat to read these three distinct and expert voices engage with each other; I’m eager to hear Kate’s response to what’s been said so far.

Both Coates and Scott bring up an interesting point that I hadn’t really considered about the film: not only how it represents the Civil War as fundamentally a fight about slavery, but also how radical, even revolutionary, that is in the context of American film history. I don’t know a lot about film history, but that makes a lot of sense to me.

But it also raises a question for me. Both Coates and Scott seem to assume—they’re not explicit about this, so I emphasize the “seem”—that movies are the medium of mass culture, the vehicle by…