The first thing that struck me was the attention to detail. When required to play drunk, I had to study Keira's interpretation of Georgiana's swagger in order to produce the same movement for continuity purposes. "My skin and hands were whitened where necessary to get a perfect match - and I waved goodbye to my L.A. tan.
"When pulling in my corset, all measurements were checked ... I was most thankful for that on the day a new wardrobe assistant mistakenly pulled me into a 22-and-a-half-inch waist. Ouch! I'm sure Keira felt the same - and thankfully I was "let out" an inch," In the film, Knightley is playing the role of Georgiana, Duchess of Devonshire, who was the great-great-great-great aunt of Princess Diana.