That is 100 percent true. Before this moment in history, it would have been impossible to imagine that one of the world’s largest corporations — AT&T, owner of HBO, with a current market cap of $220 billion — would have funded and broadcast a film like this. The fact that it somehow squeezed through the cracks and onto our TVs and laptop screens demonstrates that something profound about the world is changing. Decades, centuries of people fighting and dying were required both to widen the cracks and mold someone like Peck, the right human at the right time, to step through. “Exterminate All the Brutes” is a sprawling disquisition — four episodes, each an hour long — into the invention and consequences of 500 years of “white” supremacy, presented via a high-gloss pastiche of old footage, newly filmed dramatizations, and clips from Hollywood movies. “White” needs scare quotes because the film makes clear that whiteness is not something that exists in reality — like, say, the moon — that is right there whether we believe in it or not. Instead, it’s something imaginary that we’ve somehow all agreed on, like pieces of paper having value.