Paul Greengrass

Remembering is painful, it's difficult, but it can be inspiring and it can give wisdom.

Ultimately, if you look at all my films from 'Bloody Sunday' on, they're steeped in a post-9/11 atmosphere. 'United 93' is directly about 9/11, of course, but every one of the movies deals with paranoia, mistrust, and fear.

I think there's something about a character facing the huge problems and challenges of the contemporary world and meeting them with - head on with courage, allowing for darkness and mistake, but ultimately always moral. That's incredibly, incredibly inspiring, and that's honestly what I think.