According to a report by Reuters, on Tuesday, actress Natalie Portman returned to the Venice Film Festival with her new film 'Vox Lux,' playing the role of a pop-star with a troubled past. Speaking ahead of its world premiere, Portman reportedly said, ?Vox Lux? was ?a portrait and a reflection of our society and this sort of intersection of pop culture and violence and the spectacle that we equate between the two?.