Nick Vivarelli International CorrespondentThere is no doubt that Venice these days is the world’s top event to premiere a future Oscar winner, but it wasn’t always like that.When artistic director Alberto Barbera returned to the Lido in 2012 “a lot of things had changed at an international level, driven by transformations due to the digital revolution and the re-organization of production and distribution,” he says.At the time, “Venice was suffering very much from the competition from other