Continuity mistake: When Frank Walker and Casey Newton get into Frank's bath to escape the robots, Frank gets in on the left and Casey gets in on the right. They get shot off but when they land in the swamp, Frank is on the right and Casey is on the left.
Continuity mistake: In the scene where Zeke and Charlie are running back to the vortex, Charlie's goggles move from being on his left side to behind his neck to his right side. The goggles keep moving back and forth.
Continuity mistake: When they are driving away in the white car they go on their side and drive around and then get flipped back up and there is no damage to the car whatsoever.
Continuity mistake: When Ethan Hawke and Uma Thurman are escaping form the party, the sleeve of Ethan's suit is ripped under the armpits when he hits the cop but in a few seconds you see his sleeve completely fixed. (01:11:40)
Continuity mistake: When they are all outside and MacReady has separated the three most likely suspects and orders that they be tied down and tested, he comments at that time that they are to be hit by a storm in six hours. Cut to the scene where Mac is dictating into his recorder and he comments that the storm has been hitting them hard for 48 hours. However it is the same night and at best, maybe only an hour has passed.
Continuity mistake: There's a scene where Ellie sleeps with Palmer, then gets up quickly to go to the lab. In her haste, she departs whipping on a shirt with no bra. If she had a bra inside that tight T-shirt the contours of the cups and straps would be visible and we would see her fitting and fastening it, instead she steps outside where suddenly it appears she is now wearing a bra.
Suggested correction: I have just watched this scene again and the posting is absolutely correct. There is no bra in the T-shirt when Ellie pulls it on - we would see clear outlines of the straps and buckles if there was.
Continuity mistake: When the Iron Giant follows Hogarth home they cross a railwayline and the Giant starts to eat the steel rail. During this scene you can see the distance of the railway sleepers changing from a fair distance apart to close together over the course of the shots. In the same scene you can also see that, although there is a crossing with lights, no vehicle could possibly pass as the rail has no crossover facility at that level. (00:24:30)
Continuity mistake: When the Mayor of New York is talking to the crowds and people can feel the ground bouncing, Godzilla is a fair bit away, but when she is stomping through the streets the people don't feel it at all - shouldn't they be thrown into the air from that proximity? (00:26:25)
Continuity mistake: In the scene where Dr. Grant gets rescued by the kid and they are sitting in the water tank (truck) eating candy bars they show the kid eating a "Crunch" bar with no wrapper, just in the tin foil. In the next shot you see him eating the same candy bar but the "Crunch" wrapper is now on, then in the third shot it cuts back to the kid and the wrapper is gone and you only see tin foil again. (00:46:40)
Continuity mistake: When the spaceship first springs a leak and begins to sink, the interior shots show it tilting to starboard; Taylor falls against the starboard bulkhead and the other two survivors need to brace themselves from slipping. All of the exterior shots of the ship show it level from port to starboard.
Continuity mistake: When Graham goes into Ray's kitchen you see the vegetables scattered and the knife further on the other side of them. When Graham leans up for the knife, however, it is on the other side of the now grouped vegetables. (00:56:40 - 00:58:10)
Continuity mistake: Approximately two scenes after Kitai leaves the pigs' burrow where he sheltered for the night, the "cutlass" is suddenly missing from his backpack. He later retrieves another from the ship's tail section. There is likely a deleted scene which would have explained the loss of the cutlass.
Continuity mistake: When everyone is running out of the theater, a woman with a red belt and yellow purse can be seen exiting with the other terrified patrons. A few seconds later, the exact same woman is seen running out of the theater again.
Continuity mistake: When a man is giving a locket with two pictures, he places it on his left hand, yet the close-up shows the right hand.
Continuity mistake: Jack and Neytiri successfully save their children and eliminate four soldiers from a group of six. However, during the extraction scene, all six soldiers reappear.
Continuity mistake: When Anthony Hopkins is on the phone with John Turturro, an Autobot approaches the phone booth he is standing at to talk to him, and stands in front of the phone. A few seconds later, the Autobot starts to walk away by walking forwards. The shot cuts to Turturro telling the Autobot he'll be five minutes, and it has suddenly vanished from in front of the phone booth.
Continuity mistake: Sue's hairstyle, as well as the texture and length of her hair, and the color, changes from scene to scene, and even at times from shot to shot. This was due to movie re-shoots.
Continuity mistake: In the electronic store sale scene where Jason is trying to convince his cast mates to help the Thermians, a quick shot of him shows him bending very low at the table, then suddenly he is almost standing erect.
Continuity mistake: When Kat and the protagonist have dinner, his hands swap between crossed or not depending on the shot. (00:28:32)
Continuity mistake: During the storm of Lisa's creation, when Wyatt shouts to hang up the phone, Gary leans over Wyatt's arm and places the handset back onto the phone base. However, after Gary shouts, "What's going on?" the handset is still on the modem.