Yes, an accurate film woudn't really attract people, unless it was made for TV, by a serious, reputable channel. Then the people watching it would be interested in it, and it would be for their audience, but it coudn't be big budget. As a result of this, the quality, might not be that good, so perhaps it's better not to do it. That's the only way an historically accurate film could be made-perhaps something like The Lost Prince production, which I thought was pretty good.