[skr]

Crewman: [Captain Blood's ship has just received a terrible broadside from the one remaining French warship] We're sinking! What should we do?
Dr. Peter Blood: Do? We'll board a ship that's not sinking!

Lady Marian Fitzswalter: Why, you speak treason!
Robin Hood: Fluently.

* * *

Lieutenant John Chard: The army doesn't like more than one disaster in a day.
Bromhead: Looks bad in the newspapers and upsets civilians at their breakfast.

Pte. Thomas Cole: Why is it us? Why us?
Colour Sergeant Bourne: Because we're here, lad.

And nearly every line Capt. Renault has in 'Casablanca'.

[skr]

One more:

[Hornblower stops Hunter from shooting the French]
Hunter: We're here to fight them aren't we?
Hornblower: No, Mr. Hunter, we're here to defeat them.