Standout Paris-based sales outfit Luxbox (“1976”) has acquired international sales rights to the debut solo feature effort from Chilean multi-hyphenate Vinko Tomičić Salinas(“Durmiente”),“The Dog Thief” (“El Ladrón de Perros”), which bows in the international narrative competition at this year’s Tribeca Film Festival, running June 5-16. The film follows an adolescent shoe shining orphan, Martín (Franklin Aro Huasco), in …