What was that

Hermione:
[after Hagrid gives Ron Scabbers back]
I think you owe someone an apology.
Ron:
Right. Next time I see Crookshanks, I'll let him know.
Hermione:
[annoyed]
I meant me!
[a rock thrown from outside hits the mug on the table; Ron and Hermione turn their heads, startled]

Hagrid:
What was that?
[Hermione picks up the rock thrown]

Harry:
[a rock thrown from outside hits the back of his head]
Ow!
[turns and looks out the window]

Transcript:
Thank you.
Here, eat this. It'll help.
It's all right. It's chocolate.
What was that thing that came?
It was a dementor. One of the guards
of Azkaban. It's gone now.
It was searching the train
for Sirius Black.
If you'll excuse me, I need to have
a little word with the driver.

Clip duration: 28 seconds
Views: 68
Movie: Harry Potter and the Prisoner of Azkaban
Year: 2004
Genres: adventure, family, fantasy, mystery
Summary: It's Harry's third year at Hogwarts; not only does he have a new "Defense Against the Dark Arts" teacher, but there is also trouble brewing. Convicted murderer Sirius Black has escaped the Wizards' Prison and is coming after Harry.