Revealing mistake: When Zorg is talking on the phone with Mr. Shadow, a tube is briefly visible on his forehead. It is used to deliver the brown "goo" onto Gary Oldman's head a few seconds later. (01:16:30)
Continuity mistake: When Dallas hangs the coffee pot to brew, it's hung at an angle of about 20°. A few seconds later, it's righted itself to a level position and the handle changes to silver lined.
Continuity mistake: When Zorg is showing the the guns to the Mangalores, he is seen shooting the Police dummy, and when he turns to show them that every shot fired afterwards goes to the same place, he is seen starting to fire from his right to the left, but when the camera angle changes he is seen starting from the right again. (00:49:35)
Continuity mistake: When Leeloo is drying her shirt after being in the autowash, she is seen starting to put on the shirt and when the camera angle changes the shirt is on.
Continuity mistake: When Zorg is giving the weapons to the Mangalores in exchange for the stones there is a jump-cut. The jump cut occurs exactly in the middle of when Zorg opens the case then closes it. If you watch it closely you will notice the objects shift position. (00:50:15)
Continuity mistake: When Korben is activating the Fire stone, shots on his face show the match level, but shots on the other three show the match angled toward the stone. (01:57:05)
Other mistake: When Leeloo escapes onto the ledge and goes around the corner of the building, there are people walking across a small bridge. One of these people vanishes in the middle of the bridge when walking to the left. (00:31:20)
Revealing mistake: Whilst Diva Plavalaguna is singing, you can see the back of her head creasing and bending. This is because the suit that the actress is wearing is made out of foam latex; confirmed by Nick Dudman, Creature Design Supervisor on the DVD featurette "An Audience With Diva Plavalaguna".
Revealing mistake: After Korban meets Ruby and everyone leaves them alone, Korban grabs Ruby by the neck and holds him to where his feet can't even reach the ground. In the first shot, you can tell that Korban's hand isn't even applying pressure. In the next few shots of Ruby, still being held off the ground, you can now see that Korban's applying a little pressure now, but probably not as much as there should be while holding a full grown man a foot off the ground.
Deliberate mistake: In the very first shot of Korben Dallas, his bedside clock is facing away from him, towards us. We can read it, but he shouldn't be able to because he'd be looking at it backwards.
Continuity mistake: When the Diva is shot and she begins to fall, her arms are outstretched with her palms facing up. The shot changes to behind her and she continues her fall, her palms now face down.
Visible crew/equipment: When Korben pulls into the garage after leaving Leeloo with Vito, he says to himself, "I shouldn't have kissed her." When he does, a boom microphone is visible above his head along the roof of the cab.
Continuity mistake: After the battle when Ruby is being treated we can see Korben and Vito standing together in the background in front of the security monitors talking and Vito is no longer handcuffed. Then as Ruby screams it cuts away to Korben, and we are seeing Korben standing alone near the monitors with Vito still in the process of getting his handcuffs removed and only then does he approach Korben at the monitors. (01:43:57 - 01:44:26)
Audio problem: During any scene where weapons are being fired, the audio has the sound of cartridge casings falling onto a hard surface, but none of the weapons are ejecting cartridge casings to fall.
Continuity mistake: When Corben bails on the 5-0 (in his taxi with Leeloo), he yanks the police car's winch right out of the car (which resulted in dragging the winch, as well as the entire length of the cable behind his taxi). In the next shot showing his car (4 police cars chasing him down the "street"), the cable and winch have disappeared. (00:36:00)
Continuity mistake: Leeloo's face is dirty outside the building, but in the priest's apartment she's scrubbed clean.
Other mistake: Leeloo jumps from the ledge and falls straight through the roof of Korben's cab like it was made of paper. But a few seconds later, the police open fire on the cab and the bullets don't penetrate.
Answer: Jill Mullan.
Donald Jenkins