Harry Potter Films

Prisoner of Azkaban (to be confirmed):
"Why don't you run along and play with your chemistry set" - Sirius, to Snape

"Look at you two, arguing like an old married couple" - Snape, to Sirius and Lupin

"Now now Snape, don't be stupid" - Lupin
"He can't help it, it's habit by now" - Sirius

Goblet of Fire:
"It's not like I try to blow things up exactly it just happens a fair bit, you have to admit though, fire's pretty fascinating" - Seamus

"Alright everyone, go back to your knitting, this is going to be uncomfortable enough without all you nosy sods listening in" - Either Fred or George

"Don't you remember? I told Hermione to tell you that Seamus told me that Parvati told Dean that Hagrid was looking for you. Seamus never actually told me anything so it was really me all along. I thought it'd... be alright, you know, once you figured that out" - Ron
"Who could possibly figure that out? It's completely mental"- Harry
"Heh.. yeah, it is isn't it, suppose I was a bit distraught" - Ron
"... *with a slightly exasperated tone* boys!" - Hermione

"Silence! The house of Godric Gryfinndor has commanded the respect of the wizard world for nearly ten centuries, I will not have you in the course of a single evening besmirching that name by behaving like a babbling, bumbling band of baboons" - Prof. McGonagall
"Try saying that five times faster" - One of the Weasley twins to the other
*They proceed to do so*

"Hermione, you're a girl" - Ron
"Oh well spotted" - Hermione
Ron and Harry trying to get dates for the Yule Ball

"There she was, walking by. You know I like it when they walk" - Ron
Talking about Fleur Delacour and the girls from Beaubatons

*You see Hermione and Victor dancing - and enjoying themselves*
"Ruddy pumpkin head isn't he" - Ron
"I don't think it was for books that had him going to the library" - Harry

"I suppose Victor's already figured it out" - Harry
"I wouldn't know, we don't actually talk about the tournament; actually we don't really talk at all; Victor's more of a physical being" - Hermione
*Cue amused/cheeky grin from Harry and partially embarrassed but amused laugh/sigh from Hermione*
"I just mean he's not particularly loquacious" - Hermione
"mhm *knowing look*" - Harry

"Polyjuice potion? Kicked the habit" - Harry

"Come seek us where our voices found" - Harry
"That's obvious, the black lake" - Hermione
"An hour long you'll have to look" - Harry
"Again, obvious, though admittedly potentially problematic" - Hermione
"Potentially problematic?! When's the last time you held your breath underwater for an hour Hermione?" - Harry