Julianne Moore

I think to be courageous, you have to be afraid. For me, it feels very courageous when I go skiing because I'm very, very afraid to ski. It's dangerous! I feel very scared. But when I'm acting, I don't feel very scared.

I think people are always really surprised when they realise I'm not a very serious person and that I'm not tremendously serious about acting. I don't like to rehearse; I hate improv. Directors that don't like to talk, they're my favourite ones.

Frankly, as much as I love to improvise, it hasn't been difficult to stick to the script on 'Mad Men.' The writing is so precise, and the story so carefully crafted, that I don't think there's room - or need - for ad libbing. I could never come up with dialogue as lovely as these writers do, anyway.

Working with franchises can be challenging, but at the same time I really did enjoy working on 'Star Wars,' for example, and I have done a lot of 'Dungeons & Dragons' games, but I still enjoy it very much.