*For those of you who haven't seen Casino Royale, be warned that I give away the ending ahead.*
So, imagine you're Bond. At the end of the movie, Vesper Lynd is trapped in the elevator, which is sinking into the Venetian waters. Do you save her? Keep in mind this is before M spoils it all by tacking on the fact that she's being coerced into doing this.
I posed this question to my girlfriend, who said, "Of course." You know, standard hero-thing where you save the woman you love (and were recently about to shoot).
I said that I wouldn't. She had betrayed me (as Bond), stolen the money, and was about to transfer it to criminals. As a professional, you let her die. You can't trust her to be honest with you, and you have too much baggage to be objective in your assessment of her. At the most, I would save her to see who she had handed off the money to, but that could probably be achieved by mining her cell phone.
Probably cold-blooded of me, but then again, it's a movie and there's a reason I don't want to be a spy.