Early in Saela Davis and Anna Rose Holmer’s dark and stately God’s Creatures, screening in Directors’ Fortnight here at Cannes, one of the younger women at a wake in an old Irish fishing village declares that her new baby will definitely be learning to swim. The dead man drowned, a professional risk on the surging waters of the west of Ireland. Even now that the fishing industry has given way to oyster beds suspended in chest-deep water, the farmers wear heavy waders and the worst can happen. The other women are startled. Swimming lessons? That’s not how things are done around here.