Addison has one deliciously bitchy line after another! One of my favourites:

"As always with women who are trying to get information, she told me more than she heard."

Miss Caswell is a graduate of the Copacabana school of acting.

Addison: Margo, you were a great Peter Pan. You must play it again sometime.

@rudely_murray : Addison: Claudia, see that man over there? That's Max Fabian the producer. Now go over there and do yourself some good!

Miss Caswell: Why do they always look like unhappy rabbits?

Margo Channing: Bill's thirty-two. He looks thirty-two. He looked it five years ago, he'll look it twenty years from now. I hate men.

Margo: I love you, Max, I love you.(turns away and leaves).

Max (turns to Bill): She loves me like a father. Plus, she's loaded.

Margo:I want everyone to shut up about Eve!

Margo: "Lloyd, I am not twenty-ish. I am not thirty-ish. Three months ago, I was forty years old. Forty. Four oh - That slipped out. I hadn't quite made up my mind to admit it. Now I suddenly feel as if I've taken all my clothes off."

Margo: "The little witch must have sent out Indian runners, snatching critics out of bars and steam rooms and museums, or wherever they holed up. Well, she won't get away with it, nor will Addison De Witt and his poison pen. If Equity or my lawyer can't or won't do anything about it, I shall personally stuff that pathetic little lost lamb down Mr. De Witt's ugly throat."