Does anybody know what the letters V.O.S refer to when written after the title of a film in Spain? I'm asking because I'm off to Barcelona on 20th May and want to watch Revenge of the Sith while I'm out there. However, most of the films showing have the letters V.O.S after them. I was wondering if this had anything to do with the language the film will be played in. A Spanish bloke at work says it could be Original Version with Subtitles, but he's not sure. Anyone?