Continuity mistake: When the twins are singing about Brad for the talent show, and Michael was playing the piano (you have to listen and watch), his hands are suppose to go across the keys but he is still doing the fake up-and-down-hand-move.
Continuity mistake: At the start, Robert Neville drives into some yellow poles, only to drive into them again in the following shot.
Continuity mistake: The scene where they are looking for Ryan's dog tag. Doc comments they are laughing in front of all the guys walking by. One of the soldiers looks like Sal Mineo. Frustrated, Tom Hanks walks into the line of soldiers and civilians and starts asking if anybody has seen or knows James Ryan. The same Sal Mineo lookalike walks by him again. (01:15:10)
Continuity mistake: When Ray Kroc first orders a meal from McDonald's he is at the order window on the left. As soon as he walks away from the window he is at the right window.
Continuity mistake: When Babe is walking through the house, you will notice that several times his feet switch from muddy to clean as the camera angle changes.
Continuity mistake: At the end of the film before Nicolas Cage jumps in the ocean, the sky is overcast. Once he is in the ocean, the sky is clear blue.
Continuity mistake: Toward the beginning of their drive, while the girls are singing "Bye, Bye, Bye" the position of the window behind Mimi keeps changing. Sometimes it is all the way up, then it is part-way down, then back up again.
Continuity mistake: When Eduardo finds the letter on the mantlepiece about them apparently stealing the idea for Facebook and asks Mark if they did or not, he places a bottle on the mantlepiece just before he finds the letter. This bottle rotates slightly between shots without him touching it after placing it down. (00:49:15)
Continuity mistake: A group of Marines approaches a minefield and one of them falls with his back on a mine. The explosion throws him in the air and you can see his uninjured back. Not even his shirt got a scratch. (01:46:50)
Continuity mistake: When the kid rescues Bud from his former owner, Bud's paws become all muddy when the faucet breaks. In the next scene they are running down the road and Bud's paws are clean.
Continuity mistake: Before the school bell rings, Jason asks Ms. Darbus for her favorite summer memory. When everyone turns to look at him in the shot from the front of the class, there is a book under Troy's desk, which is not there in the previous or following shots. (00:01:25)
Continuity mistake: Watch the first kiss scene between Reeves and Theron. Keanu's shirt drops to the floor, yet you can clearly see it on his shoulder in every other shot. The camera switches angles multiple times, so this is easy to spot.
Continuity mistake: When Jon Favreau talks on the phone for the first time, there is an answering machine next to it. Then when we see the phone system again the answering machine is gone. Then Jon walks into the next room and when he walks back the whole phone system is gone. (00:04:30)
Continuity mistake: At the big dinner, Clarisse tries to show the Japanese man some pictures and he shakes his head as he eats his green soup. A minute later, they serve the green soup.
Continuity mistake: In an early part of the movie, Francis Tierney, Sr. is standing in front of a paper towel dispenser in a restroom with his son, Ray Tierney. The dispenser, which is visible over Francis Tierney's right shoulder, is at first full of paper towels, then empty, then full again. The paper towels are at first sticking out of the bottom of the dispenser, then they vanish.
Continuity mistake: Near the end of the movie, the panel has JPE 1704 TKS showing, but when Joshua finds the launch code, CPE 1704 TKS is blinking on the screen.
Continuity mistake: At the beginning, Eastwood dismounts from his horse to rescue the calf lying in the river. His horse is left standing in the river with the water up to his knees. When Eastwood places the calf on dry land, his horse is standing nearby. The horse's legs are dry.
Continuity mistake: When Darby is running from the police and heading for the police car you can see the exhaust emitting from the police cruiser tail pipe. When he gets in the car he says start the car and you can see Clyde turn the ignition/keys and the engine starts of an already idling vehicle. (00:20:35)
Continuity mistake: When the incomplete second EAM is shown in the movie for the first time, its subject line states "nuclear missile launc..." However, when this same message is finally received at the end of the movie the subject line states: "terminate launch all missiles". If the first one had been consistent with the second this would have made quite a difference. (00:55:45 - 01:45:25)
Continuity mistake: When Teresa is yelling and hitting Jordan because he cheated on her with the blonde girl in the limo, the car disappears and reappears between shots. (01:00:35)