The American obsession with 'Downton' amuses me slightly because it's such a fiction. I've always been questioned about my historical veracity, and 'Downton' just flies past, when it's completely made up.
My instinct is to absolutely recoil when talking about writing in a mechanistic way. Nothing could be dumber than writing a film or TV script based on prescriptions, on other peoples' ideas of what character should be.
When I did 'The Tudors,' there was massive information available and a ready-made market.
It works better if your lead character is complex and interesting and not perfect.
Of course I had written a film about Elizabeth I, and I loved the Tudor period, and I think at the time Working Title and I had debated on whether to do Elizabeth I or Henry VIII. I'd always wanted to do Henry VIII. Like Elizabeth, I'd had this feeling that it had never properly been addressed.