Harry Potter and the Philosopher's Stone2001

Oliver:
(Leading Harry to practice, carrying a trunk) Quidditch is easy enough to understand. Each team has seven players: Three Chasers, two Beaters, one Keeper, and a Seeker. That's you. (Opens trunk and takes a round ball with four indents in it out) There are three kinds of balls. (Tosses it to Harry) This one's called the Quaffle. The Chasers handle the Quaffle and try to put it through one of those three hoops. (Points to three hoops on opposite end of field.) The Keeper, that's me, defends the hoops. With me so far?

Harry:
I think so. (Tosses Quaffle back to Oliver) What are those? (Acknowledges two other balls)

Oliver:
Oh. (Takes out a bat, a little shorter that a baseball bat) You better take this. (Hands bat to Harry, then unlatches one of the balls from trunk. It shoots up into the air, then zooms back down) Careful now, it's comin' back.

(Harry whacks the ball with the bat. The ball zooms off in another direction)

Oliver:
Not bad, Potter. You'd make a fair Beater. (The ball comes back heading directly for Oliver) Uh-oh. (It whacks him in the chest, knocking him over. He fights with it to get it back in the trunk. He eventually succeeds, and locks it back in)

Harry:
What was that thing?

Oliver:
(Panting) Bludger. Nasty little buggers. But you... (Points to Harry)...are a Seeker. (Takes out walnut-sized gold ball with silver wings) The only thing I want you to worry about is this. The Golden Snitch. (Hands it to Harry)

Harry:
I like this ball.

Oliver:
Ah, you like it now. Just wait. It's wicked fast and damn near impossible to see.

Harry:
What do I do with it?

Oliver:
You catch it... before the other team's Seeker. You catch this, the game's over. You catch this, Potter, and we win.