Continuity mistake: David calls Connie at the White House and she walks toward the divided pane windows, then pulls one curtain to the side. In the exterior shot facing her, the pane's white grille is between the two sides of the curtain, but in the next interior shot looking out, there's only clear glass, though we should see the grille, just as we see both sides of the curtain with her hand holding the right side. Then, in the next exterior shot facing her, it's back to the original with the visible white grille. (00:38:25)
Continuity mistake: When Romeo and Juliet are in bed and Romeo playfully pulls the sheet up over his head, his shirt gets caught in the sheet and ends up over his shoulder and around his neck, but in the next shot from the side, his shirt is down.
Continuity mistake: When Nicolas Cage drives through the window in the yellow Ferrari and the shot changes, he is coming out from a different window than in the first shot. In the first shot he emerges from the window to the left of the 7th Street Garage storefront ('Classic Autos' written on the window), but next shot he emerges from the window to the storefront's right. Also, note the now glassless window to the storefront's left, due to a previous take.
Visible crew/equipment: Boom mic visible, reflected in Barb's motorbike helmet as she talks to Big Fatso.
Continuity mistake: When Tatum goes into the garage before she gets killed,she goes to get beer. She then walks over to the garage door opener with the beer in her right hand. Her left hand is reaching up to push the button, but as they show the close up, it is her right hand pushing the button. (01:05:35)
Continuity mistake: When Happy and his Grandmother arrive at the nursing home, Happy puts his Grandmother's suitcase under the bed. In the next shot it's not there anymore. (00:09:45)
Visible crew/equipment: In Servo's room, Trace Beaulieu's hand is very visible operating Crow. Watch the bottom of frame when Crow approaches the Interocitor and says "Well, let's see what this baby can do." (00:48:00)
Continuity mistake: When Matilda makes the chalk write the message on the blackboard, the writing changes. Watch the "Agatha," especially. The handwriting changes and the comma changes length, as well as most of the message changing. Also at the end of the message Matilda "writes" two long lines under it, which cross over. Yet later when Miss Trunchbull flies off the globe you can see there is just one line under the message, not two. (01:20:20 - 01:23:00)
Visible crew/equipment: When Bill's fiance is driving over after the first tornado, when the truck lands, she swerves and she stops. As she is getting out, a camera is visible. When the camera backs up though, a crew-member pulling it back is visible in the door.
Continuity mistake: When Mrs. Waterhouse walks into the livingroom and greets her three babies, there is a large area rug in front of the coffee table. However, as the babies fly towards her in the wide shot facing her, that area rug is gone! (00:22:55 - 00:23:50)
Revealing mistake: When Arnie jumps from the plane, notice the stunt double. He weighs about half of what Arnie would, and has no muscles. (00:55:10)
Continuity mistake: When Abby is consoling Noelle, after she finds out that Roy is a loser, notice the magazine she throws after saying 'You are no longer allowed to read this destructive literature' ends up on Abby's lap at the end of the scene. She threw it on the floor earlier. (00:46:55)
Factual error: Casey arrives at the desert landing in a jeep that is flagged with 4 stars (for a 4 star general) although he is only a 3 star general (as evident by the 3 stars on his shoulder boards). (00:33:30 - 00:35:25)
Factual error: In the scene where Picard opens a viewing port and shows Lilly that she is in a starship orbiting Earth he shows her New Guinea and Australia. New Zealand is missing. (00:42:45)
Suggested correction: Actually when you look at Australia and New Zealand from orbit, New Zealand is a lot further away from Australia then shown on a map, also a lot more south of Australia. A map is a 2D image of a sphere, causing proportions to be off (its well known Africa is a lot smaller on maps than it is in real life). Especially the further south or north you go distances are way off. The depiction shown in the movie is actually correct, in that angle New Zealand is just outside of the frame. There are plenty of pictures from orbit to compare.
Continuity mistake: While Francis is sitting on his bed "getting his work done", he appears to be holding a magazine. When it changes to a frontal shot he is holding a legal pad. (00:09:00)
Other mistake: Near the end of the closing credits, when the Warner Bros. Copyright appears, you'll see the very first word "All" spelled incorrectly as "Al" in "All material is protected by Copyright Laws of the United States and other countries throughout the world." (01:26:40)
Continuity mistake: In the hotel when the manager comes through the door, in the first shot the door is open, but the next time the door is closed.
Continuity mistake: When Burt is hiding in the bulldozer scoop, Grady looks down at him from the top of the oil tank and we see that Burt has his knife in his hand. However, in the next shot, we see him pull the knife out of its sheath on his leg.
Continuity mistake: As Beavis and Butt-head are dancing in the casino the floor is just flat and one surface. In the overhead shot of them dancing you can see part of the floor has changed to an tiled area instead of a plain flat surface. Also there are a number of people sitting at tables just in front of them whilst dancing. In the overhead shot they and the tables have disappeared. (00:21:30)
Continuity mistake: When George Clooney is trying to persuade his contact to tell the truth, he's got his hands either side of his contact's face. Depending on the angle, his hands are in different positions - whether his thumb's covering an ear or not is an easy way to see.