Haitian filmmaker Raoul Peck has been a prominent creator of radical cinema for four decades. Most probably know him best as the director of I Am Not Your Negro, a 2016 documentary using the words of James Baldwin to describe structural racism in the U.S., which got an Oscar nomination. His latest is called Orwell: 2+2=5. It’s about the work of the English novelist, journalist, and social commentator George Orwell, particularly his writings about politics and the threat of totalitarianism expressed in his final book, “1984.” The technique is somewhat similar to that of the Baldwin film. We hear excerpts…