Professor Snape: Have you any theories as to how Black got in?
Dumbledore: Many, each as unlikely as the next.
Cornelius Fudge: Now write your name only.
Dumbledore: It's quite a long name.
Hermione: Harry... what's happened?
Harry: [Referring to Sirius Black] He was their friend, and he betrayed them. HE WAS THEIR FRIEND!... I hope he finds me! Because when he does, I'm gonna be ready! When he does, I'M GOING TO KILL HIM!
Harry: Excuse me, sir. Where's Professor Lupin?
Professor Snape: That's really none of your concern is it, Potter?
Professor Snape: Which one of you can tell me the difference between an animagus and a werewolf?
[Hermione raises her hand]
Professor Snape: No-one? How disappointing.
Harry: Now what?
Hermione: We save Sirius.
Hermione: No idea.
Hermione: If you're going to kill Harry, you'll have to kill us, too.
Sirius Black: No, only one will die tonight.
Dumbledore: Mysterious thing, time. Powerful, and when meddled with, dangerous. Sirius Black is in the topmost cell of the dark tower. You know the laws, Miss Granger. You must not be seen, and you would do well, I feel, to return before this last chime. If not, the consequences are too ghastly to discuss. If you succeed tonight, more than one innocent life may be spared. Three turns, should do it, I think.
[He starts to exit, turns back]
Dumbledore: Oh, by the way. When in doubt, I find retracing my steps to be a wise place to begin. Good luck.
Ron: What the bloody hell was that all about?
Well, well, Lupin. Out for a little walk... in the moonlight, are we?Professor Snape
Professor Lupin: Very well. Kill him! But wait one more minute. Harry has the right to know why.
Harry: I know why! You betrayed my parents. You're the reason they're dead.
Professor Lupin: No, Harry, it wasn't him. Somebody did betray your parents, but it was somebody who, until quite recently, I believed to be dead.
Harry: Who was it then?
Sirius Black: Peter Pettigrew! And he's in this room, right now! Come out, come out, Peter! Come out, come out and play!
Cornelius Fudge: [just after Buckbeak's escape] We must search the grounds!
Dumbledore: Search the *skies* if you must, Minister, but now I think I'll have a nice cup of tea, or a large brandy. Oh, and executioner, your services are no longer required. Thank you.
Hagrid: You'll find no small glasses in *this* house.
Ron: I'm warning you Hermione! Keep that bloody beast of yours away from Scabbers or I'll turn it into a tea cozy!
Hermione: It's a cat, Ronald! What do you expect? It's in his nature.
Ron: A cat? Is that what they told you? It looks more like a pig with hair if you ask me.
Hermione: That's rich! Coming from the owner of that smelly old shoe brush. Too right, Crookshanks, just ignore the mean little boy.