I am sent too many mainstream scripts in which the older woman is really quite grotesque. Sometimes you read a script and you feel quite sick that they have to caricature older women in such a negative way.

Every role sort of teaches you how to prepare for it.

If one is married for a long time, and one does have a family . . . It is like an energy, a wonderful fire that never goes out underneath you, to help you go out into the world and do your damnedest.

One of the reasons I did this, because I wasn't really looking for another science fiction film, was that my daughter can see it. She's 9 and it's really a good film for all ages.

I changed my name when I was about twelve because I didn't like being called Sue or Susie. I felt I needed a longer name because I was so tall. So what happened? Now everyone calls me Sig or Siggy.

When I'm making the movie, I absolutely do. I work so hard, and out of the raw material that is the script and talks I have with the director, the writer, I create, I hope, a very specific person who wouldn't have otherwise existed. However, do I then attach and hang on to the finished product? No. The experience of the creation of the character is what feeds me, what excites me, challenges me.

What I love about Neill's Blomkamp work is that his stories are small human stories. But what's interesting about Neill's movies is that they're set in the future but they're so incredibly timely that it feels like maybe in the present in the next dimension. It feels like it's happening now. The universe is very recognizable, in many ways.