Revealing mistake: When the shark first attacks and bites off Jim's arm - you can see his real arm under his shirt as he's scrambling away from the water. (00:34:10)
Revealing mistake: In the swimming pool scene between Annette and Sebastian, a positioning mark can be seen quite clearly on the floor. [The swimming pool used was freezing cold, about 40 degrees, so Ryan Phillippe and Reese Witherspoon were freezing (look close and you can see Ryan shivering), and so were the camera crew, that they didn't repeat the shot, so the positioning mark was left in.] (00:28:05)
Revealing mistake: When the house has been locked down at the beginning of the film no moonlight could come in, however when the guests are being shown the coffin with the guns in there is a shaft of bright moonlight shining on to it.
Revealing mistake: When Bond is going to the Swiss banker's flat in Bilbao at the beginning of the film, there is a scene where, in the background, you can clearly see people watching the filming. (00:01:15)
Revealing mistake: When Ripley is leaving New York, there is the shot of the ship sailing out of the harbour. Check out the water - one layer has been 'cloned' on top of another.
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: When the Japanese tanks are firing upon Godzilla, one of the pyro effects catches the Godzilla suit on fire (at the arm). One can see the stunt man begin to frantically shake his arm upon this realization before the editing cuts to another shot.
Revealing mistake: When Claire jumps down into the silo filled with apples, the whole top layer of apples bounces, which indicates that there is only a thin layer of apples instead of apples all of the way down. Soft material would have been under the apples during filming. Rotting apples wouldn't have that sort of give normally.
Revealing mistake: When the man accidentally coats his hand in breading and cooks it in the boiling oil, you can tell his hand has not been damaged at all. The breading on the outside is just a little cooked, but his skin underneath seems perfect.
Revealing mistake: Before entering the Petronas Towers on New Years Eves, Jones emerges form a limousine. In this shot, as in the next few shots, there is a lot of flashing lights from photo cameras. However, when we get a shot form the crowd, these flashes of light appear out of nothing. No one is holding a camera and flashes come from places where no people are standing. Clearly, these flashes are added later.
Revealing mistake: In the scene where Rocco kills the two 'goodfellas' in the restaurant, he hides his gun by holding the gun behind his coat. Before the shot switches, you see the gun go off, yet the hammer is down the entire time. The revolver could have been single or double action, but the hammer would still have to have gone back. It is easier to see the gun go off on the NC-17 version or on the deleted scene, but you do see the flash on the R version.
Revealing mistake: When Louie is driving from the mansion, at several times it is obvious that he is not really driving the car. When the car is going straight ahead, he often turns the wheel, and vice versa. This is most obvious just after Vinnie has died, and Louie is asking "Vin? Hey, Vin, you with me over there?". The car is then going through a 90 degree bend in the road, but Louie does not move the steering wheel at all.Twotall
Revealing mistake: When Martin is being stupid as a pizza delivery man outside the cop station, in the reflection, people are staring at the camera crew.