>Richard Gere was considered for the role of John McClane.
>Bruce Willis was the fifth choice for the main character. It originally went to Arnold Schwarzenegger, then Sylvester Stallone, then Burt Reynolds, then Richard Gere before Willis got it.
>John McTiernan was originally going to make Commando 2, but Arnold Schwarzenegger turned the role offer down. Commando 2 was transformed into Die Hard (1988) and Schwarzenegger was the first actor offered the title role, but he again declined.
>The movie's line "Yippee-ki-yay, ############." was voted as the #96 of "The 100 Greatest Movie Lines" by Premiere in 2007.
>The scene in which Gruber and McClane meet was inserted in to the script after Alan Rickman (Hans Gruber) was found to be proficient at mimicking American accents. The filmmakers had been looking for a way to have the two characters meet prior to the climax and capitalized on Rickman's talent.
>The scene where Bruce Willis and Alan Rickman (Hans Gruber) meet up was unrehearsed to create a greater feeling of spontaneity between the two actors.
>Beethoven's Ode to Joy is the music theme of the terrorists. This was the idea of director John McTiernan. Hans Gruber, the terrorist leader, even hums it at one point in the movie (while he is on the elevator with Mr. Takagi). Music composer Michael Kamen at first thought it was a "sacrilege" to use Beethoven in an action movie, telling McTiernan: "I will make mincemeat out of Wagner or Strauss for you, but why Beethoven?" McTiernan replied that Ode to Joy had been the theme of the ultra-violence in Stanley Kubrick's A Clockwork Orange (1971). Kamen, a Kubrick fan, then agreed.