Game of Thrones, Season 2

Cersei Lannister:
[quiet and angry] Do you think I'm an idiot?!

Tyrion Lannister:
I'd say you possess above average intelligence...

Cersei Lannister:
You shipped off my only daughter. Now you want to send my eldest son to the battlefield to die.

Tyrion Lannister:
He'll have his Kingsguard protecting him, he has the finest armour gold can buy; he needs to be out there. The men will fight more fiercely seeing their King fighting beside them, instead of hiding behind his mother's skirts.

Cersei Lannister:
Do you know why Varys is so dangerous?

Tyrion Lannister:
Because he has thousands of spies in his employ? Because he knows everything we do before we do it?

Cersei Lannister:
Because he doesn't have a cock.

Tyrion Lannister:
Neither do you.

Cersei Lannister:
Perhaps I'm dangerous, too. You, on the other hand, are as big a fool as every other man. That little worm between your legs does half your thinking for you.

Tyrion Lannister:
It's not that little. [Cersei laughes humourlessly] Why are you laughing?

Cersei Lannister:
Because I'm happy!

Tyrion Lannister:
[suspicious] And why are you happy?

Cersei Lannister:
Because I have your little whore.

Tyrion Lannister:
[disconcerted, then sarcastic] I thought you preferred blondes.

Cersei Lannister:
Such a droll little fellow. Tell me, have you married this one yet? No? Good, Father will be so pleased!

Tyrion Lannister:
Why do you care who I f***?

Cersei Lannister:
Because a Lannister always pays her debts. You stole my daughter, you plot to have Joffrey killed-

Tyrion Lannister:
This is madness. Stannis will be here in days, you need me.

Cersei Lannister:
For what?! Your skill in battle?! Pretty thing, your whore. Lovely body; the bruises will heal in time...

Tyrion Lannister:
Where did you find her?

Cersei Lannister:
Varys isn't the only one who hears whispers. Really, a Lannister lion necklace? You need to hide your secret whores more carefully.

Tyrion Lannister:
You've forgotten the most important thing about whores...

Cersei Lannister:
Oh? Well, you're the expert, tell me.

Tyrion Lannister:
You don't buy them, you only rent them.

Cersei Lannister:
You're usually a better liar, baby brother. This one you like. You like her very much... [mocking] Could it be love? Don't worry, she'll be treated gently enough... unless Joffrey is hurt, and then every wound he suffers, she'll suffer too. And if he dies, there isn't a man alive who could advise a more painful death for your little cunt.

Tyrion Lannister:
[struggling to hold back his anger] And how do I know you haven't killed her already?

Cersei Lannister:
You'd like to see her? I thought you might. [to the guard] Ser Mandon, bring in my brother's whore. [Two Kingsguard knights drag in a beaten Ros]

Tyrion Lannister:
[to Ros] I'm sorry they hurt you. You must be brave. I promise, I will free you.

Ros:
Don't forget me.

Tyrion Lannister:
Never. [the knights drag her out. Tyrion turns to face a grinning Cersei] I will hurt you for this. A day will come when you think you are safe and happy and your joy will turn to ashes in your mouth... and you will know the debt is paid. [Cersei's grin falters]

Cersei:
Get out.