btw, did you think Keira Knightly was too thin to be Elizabeth? JE was more Rubensesque. :)
I thought Keira's presence, form, and stature were appropriately elegant. All these together gave her a dignity that helped to counterbalance the fact that she didn't fully get a late 1700's or early 1800's belle into her head before filming. I thought she was a bit too impetuous or hasty in some of her movements and the way she attacked some of the scenes, which Austen doesn't impute to her heroine in quite such strong brush strokes.
This is from http://www.imdb.com "It was discovered at an early age that Keira had severe difficulties in reading and writing. She was not officially dyslexic as she never sat the formal tests required of the British Dyslexia Association. Instead she worked incredibly hard, encouraged by her family, until the problem had been overcome by her early teens."