Oh cool, thank you for the suggestions! I'm trying to make a list for weeks where I lack inspiration.

If anybody else has a good candidate, let me know.

I gotta geek out here for a moment and say: Die Hard is so well constructed that the setups and payoffs are very easy to find, but there's one you may miss: when Hans and company first appear (the shot of their truck, I believe), there is a leitmotif from Beethoven's 9th symphony. When they finally open the vault, Ode to Joy plays in all its glory. Subtle, but it's a payoff!
It's also fun to note that, from a musical standpoint, Hans is the "protagonist" of the film, at least for the first two acts.

(Sorry! I am a massive geek for this, and wholeheartedly admit if Die Hard were a person, I would probably perform sexual acts on it.)

Disclaimer: if you dislike the tone of a post I make, re-read it in a North/East London accent until it sounds sufficiently playful