Q: How has the film helped you to understand what it takes for someone to risk everything by whistle blowing?
Knightley: "There will be many people that don't believe what Katharine did was right. There will be many people who do believe what Katharine did was right. What you can't question is her courage. The idea that somebody has a moral reaction to something and puts everything on the line...for something she believed was right in order to...save lives is an extraordinary thing. Would I have the courage to do that? I don't know."