The Man with the Golden Gun
Scaramanga, the antagonist, explains to his unfortunate guest, James Bond, that after dinner they shall duel in a battle of assassins:
Scaramanga: You get as much pleasure out of killing as I do, so why don’t you admit it?
Bond: I admit killing you would be a pleasure.
Scaramanga: Then you should have done that when you first saw me. On the other hand, the English don’t consider it sporting to kill in cold blood, do they?
Bond: Don’t count on it.