Oliver Phelps: George Weasley
Ron : There's no one like Krum! He's like a bird the way he rides the wind! He's more than an athlete! He's an artist.
Ginny : I think you're in love, Ron.
Ron : Shut up!
George : [grabs one of Ron's hands and begins singing] Victor, I love you!
Fred : [grabs Ron's other hand] Victor, I do!
Professor McGonagall : The house of Godric Gryffindor has commanded the respect of the wizarding 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!
Fred : [whispering to George] Try saying that five times fast.
George : [whispering] Babbling, bumbling band of baboons.
Fred : [whispering] Babbling, bumbling band of baboons.
Hermione : It's not going to work.
Fred : Oh yeah?
George : Why's that, Granger?
Hermione : You see this?
[gestures to a glowing circle on the floor]
Hermione : This is an age line. Dumbledore drew it himself.
Fred : So?
Hermione : So a genius like Dumbledore couldn't possibly be fooled by a dodge as pathetically dim witted as an ageing potion.
Fred : Ah, but that's why it's so brilliant!
George : Because it's so pathetically dim witted.
Arthur Weasley : Get out of the kitchen, Ron! Everybody's hungry!
Arthur Weasley : [to the twins] Feet off the table!
[put feet back on the table]
Harry : [admiring the interior of the tent] I love magic.