A new film festival is launching against the stunning backdrop of Bolivia ’s renowned Salar de Uyuni salt flats with Bolivian filmmaker Rodrigo Bellott ( “Tu Me Manques,” “Sexual Dependency”), tapped for the position of artistic director. The inaugural Salar International Film Festival (SalarFF) kicks off May 28-31, staged entirely on the 3,861 square mile expanse of pure white salt where rains transform the surface into a massive mirror reflecting the sky. Aside from its famed “world’s largest mirror” effect, its other highlights include the cactus-studded Isla Incahuasi and the haunting Train Cemetery. Beyond the flats, the high-altitude desert reveals lagoons, geysers and striking, otherworldly rock formations. Programmed under the inaugural theme “Mirror of the Soul,” the festival opens with Dolores Fonzi’s “Belén,” winner of the Goya for in the Ibero-American Film at the 40th Premios Goya, and shortlisted for an Interional Feature Film Osczar at the 98th Academy Awards.…