Continuity mistake: When Granny uses her solo ski as a snowboard the ski becomes much bigger on its own.
Continuity mistake: After Dan is injured a bandage is placed horizontally above Dan's left eye. In all subsequent shots and scenes the bandage is at an angle.
Continuity mistake: In the scene where the Griffins are having breakfast and Stewie is drunk, Brian has one egg on his plate, and some bacon. After Stewie jumps from the shelf, Brian has two eggs and no bacon.
Continuity mistake: In the scene where Simon is having dinner with Theresa's family, Theresa has a bowl of salad. She puts some salad on her plate and then some on Simon's plate. When the shot changes she is putting salad on her plate and Simon's plate again.
Continuity mistake: After Train transports everyone across the narrow bridge over the lava, he slouches down to the ground in relief. In the next shot he is standing straight, looking normal.
Continuity mistake: When Valiant flies down the gun barrel, he takes off his backpack and helmet, and he lays them down in the barrel before squeezing through the back of the gun. When he comes back out through the gun with the other birds, the backpack and helmet are not there.
Deliberate mistake: With John Cusack leaning to the side to pull Diane Lane and the dog from the water, the rowing scull should have nearly tipped over, yet it leans only slightly. Later in the same scene, the normal instability of such boats can be seen when tipping occurs to a greater degree simply from the dog moving.
Continuity mistake: When Terry is driving to see Denny, there is a shot from inside her car where the rear-view mirror is not attached. The next scene in which she is driving to Terry's, her rear-view mirror is mounted on the windshield.
Continuity mistake: In the bar scenes, the Dos Equis beer bottles change position pretty much after every shot. Sometimes there are three bottles in a row, then two, then three again. And when the bottle of nearly full beer gets tipped over, not only is there no spill, but no foam generated from the bottle being shaken the way it was.
Other mistake: When Dorthy is trying to audition for the Muppet's the man says they are gone and the Muppet's bus pulls up. If you look when the bus is pulling up there is no one in it, even the driver seat is empty. Then a few seconds after the bus stops Kermit and Miss. Piggy come walking out.
Visible crew/equipment: Upon landing in the U.S., the scammers exit their jet. As the action proceeds, on the plane's tail can just barely be seen the logo of the Indianapolis Colts football team. (In fact, the plane used for the movie does belong to the Colts.)
Continuity mistake: At the end, when Charlie is writing "As Wichita falls, so falls Wichita Falls" on the back of the RV, it shows him only making a couple strokes with his marker, only being able to write a few letters at most. In one of the very next shots, he is hit by the back of the RV as the driver, who is trying to start the engine, accidentally jerks the vehicle backward suddenly. Before he is hit, "As Wichita falls, so falls Wichita Falls" is written out completely. There is no way he would have had time to write all of it.
Revealing mistake: Very obvious stunt double when Dennis Quaid's character falls off the forklift into the kiddie pool at the hardware store.
Continuity mistake: A penguin uses binoculars rotated at a 90 degree angle, but the shot of the view through them is composed as if they were being used normally (horizontally level).
Deliberate mistake: The tiny hot air balloon that Francesca released in the debate room would never be able to support Casanova's weight.
Continuity mistake: When Alice and Trixie get home after work, in a closeup Trixie is wearing her coat but in a wide shot her coat is suddenly off, and is in her hands.
Continuity mistake: In the basketball game near the start of the movie the scoreboard showed 4.5 seconds to the end of the game. Several seconds go by including a successful basket being made. Then a time out is called. The scoreboard clock should have already run out but still showed 2.5 seconds to go.
Continuity mistake: Pauline's hair goes from windswept to normal as Bernice opens the crypt door. (00:12:50)
Continuity mistake: In the scene just after Andre has dragged Angela from the river, towards the beginning of the film, the two engage in a lengthy conversation. As the camera moves between close-ups of Angela's face, and shots of Andre, where Angela is standing in the background, her hair keeps changing from being off her face to covering her face.
Continuity mistake: In the kitchen scene at Greg Kinnear's house when Pierce is convincing Greg to fly to Arizona with him to do a job, the clock on the wall behind them first reads 5:45 am. In the next shot, the clock reads 5:28 am.