Yes, I know that most historians agree that Mary was the elder sister. But that wasn't my point. My point was that this movie was based on Phillippa Gregory's novel, where Mary was the younger sister. I was wondering why they changed that in the movie (in other words, made it different from the book). There didn't seem to be any need for it, and if they were worried about historical accuracy, they wouldn't have made a film based on Ms Gregory's book in the first place. So why bother changing the chronology of the sisters from what it was in the book? That was my question.