This may sound mad, but you sort of assume that no one's going to watch what you do. You go on set, have a lovely time, and then you forget anyone's going to see it. So it's always a bit of a shock to be recognized. I get terribly embarrassed.

I always assumed I would leave drama school and do 'Lady Macbeth' and all sorts of serious things. It just didn't happen.

If I didn't have children I might be more of a lush than I am. I like booze. I struggle with smoking. And I'm a big swearer. I'm trying to rein it in but I do think it's a nice seasoning of language.

If the script's good, everything you need is in there. I just try and feel it, and do it honestly.

I'm not a pin-up, thankfully. I'm not suggesting I feel unconfident. I am beautiful to my husband. I am beautiful to my friends. I feel sexy and all those things with the people I love.

In fact I was slightly badly behaved at school and got in trouble. I would get a bee in my bonnet about something I thought wasn't right, and I would ape about too, to make everybody laugh. That was my way through my girls' school, because I wasn't very academic.

I feel fortunate that I'm not a beauty. I'm not a classic beauty. I feel it is harder for girls who are like that. There are fewer parts.