As Bienvenu’s first feature, “Arco” is undoubtedly a promising start for a budding auteur who’s been toiling away at short films, music videos, graphic novels, and short animations for Hermès.  …“Arco” introduces us to a young boy of 10 or 11 living in a far future where humanity now resides among the clouds on “Jetsons”-like platforms on stilts. At a certain point, the population of Earth realized that a “Great Fallow” needed to happen, that the surface of the planet needed to rest. We meet Arco himself giving feed to chickens and pouring food in a trough for pigs. This may be an extremely advanced civilization he’s part of, but it’s also back to basics. And soon, we discover that people, once they turn the age of 12, don a rainbow cloak with a special light-refracting diamond, and use the colorful garment to fly through the air — and go back in time.-IndieWire