It’s easy to see why the hype had been building for A24’s new hit film “Civil War.” Set in a fictional not-so-distant future, the film imagines the United States split into various secessionist factions whose battles have turned the continental states into a war zone. Given the escalating state of real-life right-versus-left U.S. politics, many felt the film might serve as a cautionary tale for where we’re currently headed. That prospect was intriguing for many, so much so that the film snagged the No. 1 spot at the U.S. box office on its opening weekend (April 12 – 14), making it the best-per…