Loved the 'Wanna breath mint?' line! Die Hard is one of my all-time favorites, and really ushered in the era of the big budget action film. Hans Gruber is one of my favorite villans ever!
And, the "Wanna breath mint?" comment was made to actor Paul Gleason, who played Deputy Police Chief Dwayne T. Robinson. Gleason has been in many movies (the Vice Principal in The Breakfast Club, Coach Hisler in Johnny Be Good with Anthony Michael Hall and Robert Downey, Jr., etc). He is always good for some classic one liners.
Classic exchange...
Sergeant Al Powell: Excuse me sir. But what about the body that fell out the window?
Dwayne T. Robinson: Well who knows? Maybe some stockbroker, got depressed.