Just watching Chris Nolan direct was amazing. He is one of the most lovely people, which as you know doesn't always go hand-in-hand with great directors. But with Christopher Nolan, and there's only a few I think like him in Hollywood, that's absolutely true.

I think producing is first about understanding and finding people who understand it in the same way throughout the crew and everybody who's going to be working on it. And a piece of that is also personality, because there's a lot of psychology into being a good producer.

Somebody asked me, "When was the last time it was harder for you as a woman"? And I was like, "What time is it? Do you mean today?" I hate to say that, because it sounds so depressing, but it absolutely happens in many many ways all the time, large and small ways. But it's not like it creates new pain for me on a daily basis, it's just a pain that I accepted long ago. It's definitely harder.

For me and movies - and it is kind of similar to motherhood and raising your children - I always feel like there's more you can do, and I don't know if that's particularly a female quality. I don't know how dads feel, but there's definitely a never say die, no stone unturned, never give up a minute that you could be pushing it down the road and try to make it better.

It takes a number of different skill sets, I think, to try and be a good producer. You have to be very creative, but you also have to be incredibly financially minded. I jokingly say the job is kind of part cheerleader and part dictator. It is both of those things, because you have to make sure that people are doing what they need to be doing, but creatively you really need to be helping each person in every job across the crew. Cheering them on, keeping them inspired into doing their best work, and you have the director's vision in the forefront.

You want to put people together who will work well, and each movie kind of has its own personality in terms of how people are working or the temperature on set, and we want people who will fit in with that mix. It's one of the really important parts of it.

Even when you're casting, casting is always one of the weirdest subjective areas. You can get a group of people who would decide and say, "This person is a great actor and this person is less than a great actor," but there will always be somebody else who likes that person better than you based on their experience in their other films.