CANNES, France (AP) — Francis Ford Coppola on Thursday premiered his self-financed opus “Megalopolis” at the Cannes Film Festival, unveiling a wildly ambitious passion project the 85-year-old director has been pondering for decades.

Reviews ranged from “a folly of gargantuan proportions” to “the craziest thing I’ve ever seen.” But most assuredly, once again, Coppola had everyone in Cannes talking.

No debut this year was awaited with more curiosity in Cannes than “Megalopolis,” which Coppola poured $120 million of his own money into after selling off a portion of his wine estate. Not unlike Coppola’s “Apocalypse Now” some 45 years ago, “Megalopolis” arrived trailed by rumors of production turmoil and doubt over its potential appeal.

What Coppola unveiled defies easy categorization. It’s a fable set in a futuristic New York about an architect (Adam Driver) who has a grand vision of a more harmonious metropolis, and whose considerable talents include the ability to start and stop time. Though “Megalopolis” is set in a near-future, it’s fashioned as a Roman epic. Driver’s character is named Cesar and the film’s New York includes a modern Coliseum.