Francis Ford Coppola is preoccupied with time. The passage of it, the halting of it, even its cyclical nature through the repetition of events in history. The 85-year-old legendary filmmaker’s relationship with time is on full display in his latest film, the self-funded, PR-crisis-ridden “Megalopolis.” Unfortunately, a lack of self-awareness on the part of the script and its author leads to an often nonsensical and unclear narrative that ultimately clouds Coppola’s often-dizzying, grand ideals…