Harry Potter and the Chamber of Secrets2002

[Using a Polyjuice Potion, Harry and Ron are now disguised as Goyle and Crabbe as they leave the 2nd floor girls' bathroom]

Harry Potter [as Gregory Goyle]:
I think the Slytherin common room's this way.

Ron Weasley [as Vincent Crabbe]:
Okay.

[Percy Weasley spots them]

Percy Weasley:
Excuse me!

Ron Weasley [as Vincent Crabbe]:
What are you doing dow– [Harry hits him; Ron clears his throat and speaks more authoritatively] I mean, What are you doing down here?

Percy Weasley:
I happen to be a school Prefect. You, on the other hand, have no business wandering the corridors this time of night. What's your names again?

[Harry and Ron look at each other uncertainly]

Ron Weasley [as Vincent Crabbe]:
Uh...

Harry Potter [as Gregory Goyle]:
I'm...

Draco Malfoy:
[Rounding a corner] Crabbe! Goyle! Where have you two been? Pigging out in the Great Hall all this time? [looks oddly at Harry, who is still wearing his glasses Why are you wearing glasses?

Harry Potter [as Gregory Goyle]:
[Quickly removes his glasses] Um... Um... reading.

Draco Malfoy:
Reading? [Harry nods] I didn't know you could read. [Turns to Percy] And what are you doing down here, Weasley?

Percy Weasley:
Mind your attitude, Malfoy.

[Draco just smirks and walks off; Harry and Ron follow him to the Slytherin common room.]