The amazing moment when Ruby finds the bomb in the hotel.
Cornelius: (stares at the bomb with an Oh Crap face, turns to Ruby) It'saitsaitsaitsa—
Ruby: Nononononononono, 'cause if it was a bomb, the alarms would go off because all these hotels have bomb detectors, right?
(alarm goes off)
Ruby: (staring at the bomb) K-Korben, my man, y-you know how to stop this, right?
Korben: (stares wordlessly at the bomb, then looks at Ruby)
(Cut to all four of them running for their lives to find the escape pods.)
"Lady, I only speak two languages—English and Bad English!"
Korben's "wake up" slap that he gives to Father Cornelius after he passes out.
It's really brief, but look at Korben's face right when Father Cornelius whacks him on the head with the medal so that he can steal his tickets to the cruise. I promise, you will hurt yourself laughing.
At long last, after Leeloo saves the world, David yells "YEAH!" and scares the shit out of Ruby, prompting his very dramatic exit.
Ruby: WHAT'S WRONG WIF YOU?! Whatchoo screamin' for?! Every five seconds there's a bomb or somethin'! I'm leaving. BZZZT! (flourish, storms off)
The Oh Crap look on the scientist's face when he realizes Korben and Leeloo are making out (and possibly in mid-coitus, we can't see below their shoulders...although the "give them 5 minutes" strongly implies it...), right when the President wants to talk to them on LIVE TELEVISION.
The President's attempt to speak with Korben's mother. He is instantly horrified and confused and passes the phone off to someone else to take care of. Meanwhile, Korben's mother continues ranting until the scene switches to Korben and Leeloo.
Ruby is holding a gun to the head of a Mangalore as Korben gathers up the stones. Korben accidentally spooks him and the gun goes off. Then we get this gem:
Korben shoving the general and his aides into the refrigerator to get them out of the way when Leeloo comes calling. After that crazy scene ends, he just closes the door on them after saying he'd accept the mission.
Zorg finally gets his hands on the box, opens it and gives an Evil Laugh, then breaks down in tears.
"They're not here!" (bites hand)
The music that plays during funny scenes.
A Funny Background Event for your enjoyment—when Leeloo is holding the gun on Korben after he wakes her up, right after he asks for the gun back, watch Bruce Willis' face and you'll see him whisper, "Call me!" to Leeloo before Cornelius rushes him out the door.
When General Munro cheerfully informs Corben that he's won the Floston Paradise contest.