The British royals are dinosaurs, and I mean that in the best way possible. They’re these fascinating, colossal, violent beasts from distant history. These days, however, they’ve been reduced to museum pieces: majestic but harmless skeletons of their former selves. So it’s rather thrilling to see a show that combines the epic stakes of the old royals with the contemporary scandal of the new ones. King Charles III was created as a stage play by British playwright Bartlett in 2015; this year, the BBC turned it into a 90-minute TV movie.