Carolyn Giardina It’s been one of Hollywood’s most sought-after invitations. For the past few years, a who’s who of directors, cinematographers, studio execs and exhibitors have been quietly ushered into an unmarked room at the famed Glen Glenn Sound facility in Los Angeles. They’ve made the trek to get a peek at new projection technology that has been in the works for years at Barco, the Belgian tech firm known for its high-end cinema exhibition systems.