I found this Q & A session with Romola online.

Q: How was it shooting in those gorgeous country piles in Norfolk?
A: It was great. Everything was shot in Norfolk apart from a week at the end in London. Norfolk’s amazing, really atmospheric and beautiful.

The only trouble was that everybody knows WWII started in August but we shot in November and it was freezing.

I will never forget the picnic scene where Jeremy Northam, Bill Nighy and Julie Christie were shaking with the cold.

The director turned round to do a shot on me and they were all like: “Do you need us here? We’re so cold.” The one thing I was really pleased about when I saw it was it doesn’t look like we’re that cold.

Q: Did you enjoy wearing the clothes from that era?
A: Yes, it’s a beautiful era. And I really love costume – it’s my favourite dressing-up box moment. Annie, from the costume department, was brilliant.

She made strong colour choices for my character, really using primary colours, which you don’t see very often.

People tend to be afraid of them. When she came out saying, “This is the dress I want you to wear”, I was standing there going, “Very brave choice.” But they were brilliant, she’s a very clever woman.

Q: You’ve played Emma in the TV adaptation of Emma and starred in period films like Atonement and Amazing Grace, so we won’t be seeing you in a binki role then?
A: I’m saying I wouldn’t do it but nobody’s asked me yet .

Source: Daily Record