I'd like to put the record straight about that. I've been labelled an irresponsible role model for young mothers, but none of it is true. I couldn't even walk for two weeks after the birth, let alone exercise. I ate very healthily all the way through my pregnancy and afterwards. I didn't do anything extreme.

In Hollywood I got work but not the right work until Pushing Daisies. Every girl in LA wanted the part of Chuck. I was terrified - I didn't know if I could be funny.

But Americans find me bizarre and always ask me why I eat so many carbs. I tell them I don't get full otherwise.

Being a mother gives you an incredible feeling of empowerment, you think if I can go through such pain and that level of sleep and still operate and not be grumpy you can do anything. It can be quite scary, you can't function your brain, forget your vocabulary.

I've got the best lead man, I really love my lead man.

If oil exploration can threaten a place as beautiful and meaningful as Virunga, where next?

I want more children but for the next three years I want to act.