The Hobbit: The Desolation of Smaug2013

Bilbo:
[he and Balin walk further through the mountain] You want me to find a jewel?

Balin:
A large white jewel, yes.

Bilbo:
That's, that's it? Only I imagine there's quite a few down there.

Balin:
There is only one Arkenstone. And you'll know it when you see it.

Bilbo:
Right.

Balin:
[walks ahead then stops] In truth, lad, I do not know what you will find down there. You needn't go if you don't want to. There's no dishonor in turning back...

Bilbo:
No... no, Balin, I promised that I would do this, and I think that I must try.

Balin:
[chuckles] It never ceases to amaze me.

Bilbo:
What's that?

Balin:
The courage of hobbits. Go now, with as much luck as you can muster.

[Bilbo nods, smiling and starts to make his way down the stairs]

Balin:
Oh, and, Bilbo.

Bilbo:
Hmm?

Balin:
If there is in fact a um... a live dragon down there... don't waken it.

[Bilbo nods, turns to make his way down again, but stops. He goes to ask Balin something but sees that Balin has walked off, leaving him alone. Bilbo continues down the stairs]