Francis Ford Coppola made it. He’s been trying to make it, in fact, for 40 years or more. And it seems as if he has stuffed every single idea he had in the meantime into the movie, plus a few more. To say it’s all over the place is a huge understatement.

Naive, decadent, sluggish, dazzling, touchingly sincere in its belief that “a vital conversation” about the state of our nation can save us, even with barbarians at the gates: There’s something to vex everyone in “Megalopolis.