The event, expected to attract some 200 guests including U.S. President Donald Trump's daughter Ivanka and son-in-law Jared Kushner, as well as scores of stars from film, fashion and business, has been dubbed "the wedding of the century".

Jeff Bezos’s upcoming Venice wedding has become a lightning rod for protest, as locals disgruntled with overtourism join climate activists to rage against a spectacle that to them epitomises many global ills.