“- Sky Captain: It's a mobile airstrip. Dex had a hand in designing it. It's kind of a secret. You can keep a secret, can't you, Polly?
- Polly Perkins: Yeah. I can keep a secret.”

Jude Law - Sky Captain
Gwyneth Paltrow - Polly Perkins

“Can you keep secrets? Can you know a thing and never say it again? And codes? I imagine they lie down for you like lovers.”

Sir Ian McKellen - Sir Leigh Teabing

“I put my trust in Kemp. I told him my secret and he gave me his word of honor.”
Claude Rains - Dr. Jack Griffin aka The Invisible Man

“You can't just believe people when they look you in the eyes. You have to look behind them. And see what they're standing in front of, what they're hiding. Everybody's hiding.”
Kristin Fiorella - Emma Tate

“I think we have the kind of friendship where if I were the devil, you'd be the only one I would tell.”
Albert Brooks - Aaron Altman