I think behind closed doors people behave differently no matter what period we're looking at, because people have to stand up straight in public but can slouch behind closed doors - can you imagine wearing those corsets?
I knew Secrets and Lies was a great film, but I didn't expect it to get the attention it did because none of his other films had and I thought they were just as good.
People say to me that I can't be nervous because I've had such a wealth of experience, but I tell them that I have never done this particular part before.
I've done a lot of costume drama and theatre - the National Theatre and In fact, most of my work at the theatre, at the National Theatre anyway, was period.