Continuity mistake: When Miller's men are about to take the bunker under the radar tower, they are kneeling on the ground behind some bushes discussing their flanking moves and Jackson is about two feet away from Reiben to his left, but when it cuts Jackson is now behind Reiben. (01:22:35)
Factual error: After crashing on the asteroid, A.J. walks outside surveying the wreckage while debris is strewn out burning on the ground. This is wrong, as oxygen is needed to make something burn, and there is no oxygen on the asteroid. (01:27:40)
Visible crew/equipment: As Jackie Chan begins to fall from the ceiling onto the banner after the climax you can see about 4 (maybe 5) crew members on the balcony to the right of the screen getting the high angle shot. (01:28:35)
Continuity mistake: As Godzilla is about to step on Animal, we see two cars are directly behind Animal (a yellow taxi and a gray car). Each shot of Animal from the front as the monster approaches (and he's trying to get the tape locked into the camera) shows portions of the cars. But in the side shot of the foot as it lands, no cars are right behind Animal at all. (00:29:50)
Continuity mistake: When Capt. Picard, Data, and Anij are going to the holoship, they start off from the landing dock with (facing them) Data on the left, Capt. Picard on the right and Anij sitting. This is all well and good but after Data opens the door to the holoship, they magically switch places. (00:33:25)
Continuity mistake: When Samir is shot and falls into the pool, he falls in facing up. But the underwater angle shows him land in the water face down. (01:42:45)
Continuity mistake: After nana picked up Will's kids and Will Smith is lying in the back of the car, look closely at nana's seatbelt. In the first shot it's on, in the next shot she doesn't wear it anymore and in next shot its on again.
Continuity mistake: In the scene where the Monte Carlo is battling with the Camaro, they go off road into a field. During a certain shot, the Camaro has to jump a hill and it goes airborne. While it's airborne, you can see the entire front end is destroyed. However, after it lands, you can see the front end of the Camaro is in excellent condition and it remains intact for the remainder of the film. I would guess that they used at least two Camaros for the film. (00:26:10)
Visible crew/equipment: When Vincent and Sam are running through the ice rink's changing rooms to get the case off Gregor, the camera passes a mirror. If you pay attention, you can quite clearly see the boom operator wearing a blue and white checked shirt in it. (01:43:40)
Revealing mistake: Just after they dump the tacks out of the window, the Russians' car flies up into the air in a really quite impressive car crash. Just before it flips over though, you can see the huge ramp put in front of it. (00:32:20)
Visible crew/equipment: When Christy and Alan take off on the scooter, we see a few instances of Kirsten Dunst and Gregory Smith's stunt doubles. (01:15:43)
Character mistake: At the radio store a sign shown to Jack when he asks if they take personal checks is misspelled. It says "personnal." (00:58:55)
Continuity mistake: When Ash says, "Wow!" the bowl of fruit changes as well as a cup changing from being on right of it to the left of it. (00:40:25)
Continuity mistake: When Blade gets captured and stabbed in the room where the "Vampire Bible" is, he is not wearing an ear piece. In the next shot, he is. (00:51:45)
Continuity mistake: When Alejandro and Diego fight in the cantina, Alejandro knocks over stalks of corn rolled up in a bundle into the doorway. In the next shot, the corn stalks are standing again. (00:35:30)
Continuity mistake: The heels on Barbara's shoes appear and disappear throughout the movie.