We're in a world of truncated sentences, soundbites and Twitter... [Language] is being eroded -- it's changing. Our expressiveness and our ease with some words is being diluted so that the sentence with more than one clause is a problem for us, and the word of more than two syllables is a problem for us.

Ridicule is also a weapon against forces of evil. Really clever, intelligent ridicule.

Unicef wants to encourage a sense of stability for a child.

It's thrilling to have the opportunity to work in different areas, whether it's on a project that has all the resources behind it like Harry Potter or James Bond and then to go somewhere there's very few resources.

There is a humanitarian impulse that one aspires to and there are days when one doesn't do it very well.

News reports can overwhelm us. We can be appalled, we can sympathise. But what is hard to grasp is the sense that, at this moment, people are working, organising - not just at an executive level, but on the floor, in the warehouse. A man is packing a box of oral rehydration tablets; maternity kits are being prepared; education kits are being packed. And somewhere, tomorrow, those boxes will be unpacked and a child with life-threatening diarrhoea will be saved, a baby will be born in more hygienic circumstances, a girl will receive her first exercise book and her first pencil.

Kenya doesn't have much of an infrastructure for hosting a film of this scale. Our producer decided that for the film to really work it had to be in Kenya.