For those old enough to remember, Errol Flynn once played Robin Hood -he also played General Custer and other American western folks. He was Tasmanian by birth and never lost his accent. Most people didn't care at the time and few commented on it. Different times.... Had Russell Crowe spoken the language of the times in which the story is set, it would have been unintelligible to modern humans, most likely -with the possible exception of habitue's of Reykjavik discos late at night.