Revealing mistake: In the scene out West with the buffalo, notice the car driving in the distant background.
Revealing mistake: When the farmer is going to shoot the sign the bank put up, you can very well see the mark where the hole is going to appear.
Revealing mistake: During the scene in Clouseau's hotel room at night, there is a light outside which shines on the net curtains to simulate moonlight. This light is off when the room lights are on, and is turned on when the room lights are turned off. At one point, when Inspector Clouseau is going into the bathroom after giving the sleeping pill to his wife, the fake moonlight suddenly turns on for no reason.
Revealing mistake: When Deeds rescues the last cat from the fire, if you look closely, you can see the fire-proof glove he has on his hand. (00:50:45)
Revealing mistake: When Harkin Banks almost loses control and skis through the lodge, the jump ramp is visible as the woman opens the door. (01:29:45)
Revealing mistake: When Leslie is fighting the soldiers, one soldier hits a second soldier with his rifle. The rifle can be seen to bend around the soldier's body and then straighten again. (02:12:10)
Revealing mistake: When Paddy lays dead on the beach holding a barrel, the kids turn him over and a crab crawls out of his mouth. You then can briefly see his nose move like a rabbit sniffling. Also his pupils are narrow, and a the side of his neck has a pulse. In other words, he is very much alive. (00:24:30)
Revealing mistake: There are several scenes Meg Ryan and Tom Hanks' computers do not have any telephone wires attached to them. They are in an era where they were using AOL dial up, as heard by the connection. They were not using wireless.
Revealing mistake: When Jenna is in her bedroom with her mom, as she points to the pictures in the article in Poise magazine, "30, Flirty and Thriving," it is blatantly apparent that it's not Jenna's 13 yr old hand in the close-up, but a much older body double. (00:05:25)
Revealing mistake: Near the end of the film, a B-52 seen flying across the screen. The bracket holding up the model is visible.
Revealing mistake: During the catamaran sailing scene, the boat jibes and Brosnan leaps across the trampoline and starts grinding on an empty winch, with no line in it. (00:37:40)
Revealing mistake: In the beginning of the movie when Charlie is in the gym, the last can of spray paint he uses, just before the Principal catches him, appears to spray 'clear'.
Revealing mistake: When David drives through the outer wall of the bakery products store, in the side shot the wall first bends, then it breaks as the car goes through. Also, the next back shot is a repetitive action, although the window breaks quite differently in both shots. (00:50:45)
Revealing mistake: At the very end, a bat flying out of the mist toward the camera was intended to imply that Barnabas had taken bat form and could thus be around for a sequel. But through the haze, Barnabas can still be seen lying on the floor when the bat flies past. (01:36:25)
Revealing mistake: The "blower" on the yellow Firebird never runs. NO wonder he couldn't beat the Wraith. (00:44:10)
Revealing mistake: When Chaplin is performing the Oceana Roll, the edge of his white makeup is visible on his right cheek.
Revealing mistake: When Bill Murray is blowing up the prison door, you see the explosion, but the explosive is still intact.
Revealing mistake: The birds that attack the schoolchildren have no shadows. (01:13:40)
Revealing mistake: In the scene where Tristan and Isolde have their first secret talk in the market, when the camera is on Isolde, you can see that she is wearing contacts.
Revealing mistake: In "Wonderful, Wonderful Day" there are live birds flying on the set, but they were confused by the backdrop and several crash into it. (The director acknowledges this in a documentary.)