I'm not going to change the world overnight. It's one person at a time and hopefully they're people in positions of power who can help people get in those roles and really truly embrace colorblind casting.

Having played many roles of scientific intellect I do have an empathy for that world. It's been hard on me because flying the Enterprise for seven years in Star Trek and sitting in Cerebro in X-men has led people to believe that I know what I'm talking about. But I'm still trying to work out how to operate the air conditioning unit on my car.

There's a terrible truth for many women in the picture business: Aging typically takes its toll and means fewer and less desirable roles.

My main aim has always been to do good quality films with roles that have some substance. With Power and Beauty there were loads of things that I liked about the movie which made me opt for it.

Often the roles I'm offered in England are melancholic women who are filled with regret for the past regret for their fading beauty.

I think that we're in a really amazing time where there are really a lot of really fantastic female actresses and comedians. I imagine there's just a lot of opportunity for women to have powerful roles. Or it's just that there's more women writing TV. Women tend to maybe write strong women.

That's double-edged: it's amazing that they're bringing me in and showing people new ideas and at the same time it's a little hard because seventy percent of the time or even higher I'm not going to get those roles.

There's such an array of brilliant roles for young women. You read all these amazing young women going through different stages in their life - different stages different fascinations different textualities different friendships.

'Chasing Amy' was an amazing role but then after that I went and did 'Big Daddy' and you're the girlfriend or you're the best friend. I wasn't getting the Nicole Kidman roles.

I hope to find the roles that are age appropriate but not yearning to be younger or parenting ad nauseam.

I definitely don't look my age. So I actively look for roles that will help people change their perception of me.

I am happy being able to play roles with people my age because once you do something really mature there is no turning back.

Age is the first limitation on roles that I've ever had to encounter and I hit that awhile ago.

If you age with somebody you go through so many roles - you're lovers friends enemies colleagues strangers you're brother and sister. That's what intimacy is if you're with your soulmate.