There are a few historical inaccuracies, not to the ridiculous levels of Braveheart, Ned Kelly or the rewrite of history seen in Hollywood movies. But there a few here and there which were irritating. Away from this, it is a great film and beautifully shot. I guess that is the great thing about the long and interesting history of the British and Irish nations (for better or worse), because you can pretty much select any year from the last 2,000 and make a decent period drama out of it.