I find it very difficult to be two different characters at the same time - actress and mother.
I do a film because I like the story and I want to give life to a character - I don't necessarily have to agree with the director.
As a younger actor you want to be approved of, you want to gain respect, be admired. All of those things. To say: 'This is me playing this character. And aren't I fantastic!' I don't feel that so much now.
I know people think that I always play these characters who are in control and can chop someone's head off with a look.