Below are quotes from all Harry Potter movies thus far.
Harry Potter and the Philosopher's Stone
Hermione: Are you sure that's a real spell? Well, it's not very good, is it?
Hermione: I'm Hermione Granger. And you are?
Ron: Ron Weasley.
Hermione: You've got dirt on your nose. Did you know? Just there.
Ron: Mental, that one. I'm telling you.
Ron: What do they think they're doing, keeping a thing like that locked up in a school?
Hermione: You don't use your eyes, do you? Didn't you see what it was standing on?
Ron:I wasn't looking at its feet! I was a bit preoccupied with its heads, or maybe you didn't notice? There were three!
Hermione: Now, if you two don't mind, I'm going to bed before either of you come up with another clever idea to get us killed. Or worse, expelled.
Ron: She needs to sort out her priorities.
Ron: Wingardium leviosar!
Hermione: Stop, stop stop! You're going to take someone's eye out. Besides, you're saying it wrong. It's Levi-O-sa, not Levio-SAR.
Ron: "It's Levi-OOOOH-sa not LevioSAR." She's a nightmare, honestly. It's no wonder she hasn't got any friends!
[Hermione runs past them, crying]
Harry: I think she heard you.
Ron: I think we've been a bad influence on her.
Hermione: I got this out weeks ago for a bit of light reading.
Ron: That's light?
Hermione: It means you'll never die.
Ron: I know what it means!
Hermione: Neville, I'm really, really sorry about this. Petrificus totalus!
Ron: You're a little scary sometimes, you know that? Brilliant, but scary.
Hermione: Stop moving, both of you. This is devil's snare! You have to relax. If you don't, it'll only kill you faster!
Ron: Kill us faster? Oh, now I can relax!
Hermione: Ron, you don't suppose this is going to be like... real wizard's chess, do you?
[one of the pawns smashes another to pieces]
Ron: Yes, Hermione, I think this is going to be exactly like wizard's chess.
Harry Potter and the Chamber of Secrets
Draco: No one asked your opinion, you filthy little mudblood.
Ron: You'll pay for that one, Malfoy! Eat slugs!
[Ron's spell backfires.]
Hermione: Ron! Ron, are you all right? Say something!
[he vomits slugs]
Hermione: Do you think he's all right?
Ron: Who cares?
Hermione: Look at my face.
Ron: Look at your tail!
[About Crabbe and Goyle]
Ron: Maybe we could trick them into telling.
Hermione: Even they aren't that thick.
Harry Potter and the Prisoner of Azkaban
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.
Hermione: You know, the Egyptians used to worship cats.
Ron: Yeah, along with the dung beetle.
Hermione: Come on, everywhere else is full.
Ron: [seeing Lupin] Who do you think that is?
Hermione: Professor R.J. Lupin.
Ron: Do you know everything? How is it she knows everything?
Hermione: It's on his suitcase, Ronald.
Ron: Where did you come from? Where did she come from?
Ginny: The Fat lady, she's gone!
Ron: Serves her right. She was a terrible singer.
Hermione: That's not funny, Ron!
Hermione: Did I mention it's the most haunted building in Britain?
Hermione: Oh. Do you want to move a bit closer?
Hermione: To the Shrieking Shack.
Ron: Oh, no. I'm fine here.
Hermione: Look who it is, Madame Rosmerta. Ron fancies her!
Ron: That's not true!
Hermione: Beautiful day.
Ron: Gorgeous. Unless of course you've been ripped to pieces.
Harry: Ripped to pieces? What are you talking about?
Hermione: Ronald's lost his rat.
Ron: I haven't lost anything, your cat killed him!
Ron: Harry, you've seen the way that blood thirsty beast of hers is always lurking about. Scabbers is gone!
Hermione: Well, maybe you should learn to take better care of your pets!
Ron: Your cat killed him!
Hermione: Did not!
Ron: She's gone mental, Hermione has! I mean, not that she wasn't always. But, now it's out there in the open for everyone to see.
[After Hermione hits Draco]
Hermione: That felt good.
Ron: Not good, brilliant!
Hermione: I think you owe someone an apology.
Ron: Right. Next time I see Crookshanks, I'll let him know.
Hermione: I meant me!
Hermione: Ow. That looks really painful.
Ron: It's sort of painful. They uh, they might chop it.
Hermione: I'm sure Madame Pomfrey will fix it in a heartbeat.
Ron: It's too late, it's ruined. It'll have to be chopped off.
Harry Potter and the Goblet of Fire
Ron: Hey, Hermione, you're a girl.
Hermione: Oh, well spotted.
Ron: Come with one of us?
Hermione: I won't be going alone because, believe it or not, someone's asked me. And I said yes!
Ron: [about Hermione] Why do you think she won't tell us who she's going to the ball with?
Harry: 'Cause she knows we'd take the mickey out of her if she did.
Ron: He's using you.
Hermione: How dare you! Besides, I can take care of myself!
Ron: Doubt it. He's way too old for you.
Hermione: What? That's what you think?!
Ron: Yeah, that's what I think.
Hermione: Well you know the solution then don't you?
Ron: Go on.
Hermione: Next time there's a ball, pluck up the courage and ask me before somebody else does, and not as a last resort!
Hermione: Ron, you spoiled everything!
Hermione: Promise you'll write me this summer? Both of you!
Ron: Oh, I won't. You know I won't!
Harry Potter and the Order of the Phoenix
Ron: Hermione, you are truly the most wonderful person I have ever met and if I'm ever rude to you...
Hermione: Then I'll know you've gone back to normal.
Hermione: Do you ever stop eating?
Ron: What? I'm hungry.
Hermione: It's kind of exciting, isn't it? Breaking the rules.
Ron: Who are you and what have you done to Hermione Granger?
Hermione: You found it Neville! The Room of Requirement. It becomes available to anyone who really needs it.
Ron: So say you really needed the toilet...
Hermione: Charming, Ronald. But yes, that is the general idea.
Ron: Don't worry, I'll go easy on you.
Hermione: [sarcastically] Oh, thank you Ronald.
Hermione: I'm sure Harry's kissing was more than satisfactory. Besides, Cho spends most of her time crying.
Ron: You'd think a bit of snogging would cheer her up.
Hermione: Ron, just because you have the emotional range of a teaspoon!
[After meeting Grawp, who picked Hermione up]
Ron: Are you all right?
Hermione: Fine. Just a little firm-handled is all.
Harry: I think you've got an admirer.
Ron: [to Grawp] You just stay away from her! All right?
[After Harry and Hermione escape from Umbridge in the Forbidden Forest]
Hermione: How did you guys get away?
Ginny: Puking Pastels, it wasn't pretty.
Ron: Yeah, I told them I was hungry and lead them to a box. They pushed me away and ate them all themselves.
Hermione:That was clever, Ron!
Ron: It's been known to happen.