Simon Dermott: You know, for someone who starting lying just recently, you're showing a real flair.
Nicole Bonnet: [smiles] Oh, thank you!

[Evaluating Nicole's cleaning-woman costume.]
Simon Dermott: Yes, that's fine. That does it.
Nicole Bonnet: Does what?
Simon Dermott: Well, for one thing, it gives Givenchy a night off.

Charles Bonnet: American millionaires must be all quite mad. Perhaps it's something they put in the ink when they print the money.

Simon Dermott: There's the bathroom, take off your clothes.
Nicole Bonnet: Are we planning the same sort of crime?

[Nicole describes the burglar to her Papa.]
Nicole Bonnet: Well, it was pitch dark and there he was. Tall, blue eyes, slim, quite good-looking... in a brutal, mean way, Papa. A terrible man!

Charles Bonnet: This tall, good-looking ruffian with blue eyes, he didn't, er, molest you in any way, did he?
[Nicole is staring off dreamily.]
Charles Bonnet: Well, did he?
Nicole Bonnet: Not much.

Nicole Bonnet: I keep telling you, when you sell a fake masterpiece, it's a crime!
Charles Bonnet: But I don't sell them to poor people, only to millionaires.

Charles Bonnet: Don't you know that in his lifetime Van Gogh only sold one painting? While I, in loving memory of his tragic genius, have already sold two.

Nicole Bonnet: I can't drive a stolen car!
Simon Dermott: Same principle, four gears forward, one reverse.

Thanks to The Internet Movie Database