Yeah, there's a lot we have to overlook in films. The one thing I always feel that is done "wrong" in most period films is that the way in which the characters talk and carry themselves often overlooks the culturally ingrained behaviors that they would have had regarding their station.
That is, they often have characters "speaking out of turn" and getting away with it, in ways that simply would not have been acceptable back then. The societal strata were seen as all part of God's plan. You knew your place, and you stayed in it. To do otherwise was to risk a harsh and brutal punishment. To be accurate, characters should never speak plainly and without prompting to those of a higher station. Not without showing proper reverence.
Having said that, in Ironclad, when Baron Aubigny says something like "Hi John!" from the top of the wall, it worked, because he was at that point supposed to be showing open defiance. Most audience members either wouldn't catch that, or they'd realize it was an insult to King John. But to those of us in the know, we realize that it was a deep insult to talk that way to a king. A clear defiance meant to say that he didn't recognize him as royalty.
