“- Tony Blair: [on TV] What we know, is that Saddam has this material.
- Katharine Gun: You don't know that. I mean, he just keeps repeating the lie. Just because you're the Prime Minister, it doesn't mean you get to make up your own facts.”
Tony Blair - Himself
Keira Knightley - Katharine Gun

“My father was a writer. You would've liked him. He used to say that artists use lies to tell the truth, while politicians use them to cover the truth up.”
Natalie Portman - Evey

“- Dr. Weitzman: Hey Billy, we gotta go. Are you sure you can drive this thing?
- Billy Caufield: Are you kidding? I finished second at Daytona.”
Dennis Boutsikaris - Dr. Weitzman
Michael Keaton - Billy Caufield

“I abhor torture. But your words just don't match your thoughts. There are too many details you're just not sharing with us. Our little mind-reading device doesn't lie.”

Steve Railsback - Colonel Pryzer

“- Mother: Why would I lie to you?
- Young Martin: Because you can.”
Heather Mitchell - Mother
Jeffrey Walker - Young Martin