Other mistake: When Margaret and Andrew first walk into the Immigration Office there are a group of extras seated directly to the left of them, in two rows. One of them, a guy with glasses and long black hair, wearing a white shirt with patterns (back row, second from the wall, next to the guy in the light yellow shirt), briefly looks at the camera as Margaret and Andrew walk by.
Other mistake: When Stallone stops the bad guys in the semi full of cocaine, they fly through a windshield that is apparently made of plate glass, and not the safety glass found on almost every other vehicle windshield on earth.
Other mistake: The Magic Eye Picture that Willem is looking at throughout the movie is NOT a sailboat. If you pause the movie and find the image it's actually three rows of 3D shapes.
Other mistake: When Marcus and Kevin reveal their real identities to the crowd, their eye colour changes from blue to brown without any indication that they removed their contact lenses. They simply lift off their masks. (01:38:10)
Other mistake: When Marty returns to 1985 from 1885 the time machine is destroyed by a train. What is strange is that not only does the train not stop (which is mandatory in the event of an accident) but there is also no reaction from people nearby, such as those in the vehicles waiting to cross the track at the level crossing. Later, when Marty returns to the site with Jennifer, there is still no sign of police officers or other officials.
Other mistake: When Sarah is at her Aunt Mitzi's house looking at the yearbook picture of Beau Burroughs, Beau's name appears on the top of the list, yet his picture is farthest to the right in a row of pictures. Yearbooks list names with the top name being on the left, and the last name on the right.
Other mistake: When Bogomil gets shot two bullets are fired, one by the drive-by shooter and one by Karla, yet there are three distinct bullet holes and a forth large hole in the rear windshield of Bogomil's car. Two holes are completely unaccounted for. (None of the windshield holes are tree reflections.)
Other mistake: In the scene where Paolo leaves the stage after everyone discovers that he can't sing, his bodyguard Serge stops him and Paolo suddenly loses his Italian accent. Paolo sounds very American when he says "You work for me, Serge."
Other mistake: Lightning Mcqueen is trying to become the first rookie in Piston Cup history to win the Piston Cup, but Doc Hudson won the Piston Cup in 1951 the first year that Hudson Hornets were produced, which also would have made him a rookie.
Other mistake: During the one game playoff against the Yankees, the runner Taylor picks off at first base has the same number as the batter who had just struck out. Also, the number they both wear has been long since retired by the Yankees and therefore no player could ever wear it again. Again, in the first game against the Yankees, the first base coach also has the same number, making it three Yankee players with the number 37.
Other mistake: When Martin Lawrence falls over the railing in attempt to get the mysterious necklace, the camera goes to another shot that pulls away from the moat. You can see the logo on the back of Lawerence's cover-alls swimming away at the corner of the screen, when he's supposed to be under water. (00:06:15)
Other mistake: When Mike goes to Marcus's house to apologize, as Marcus lets Mike in and they walk through the house you can see the corner of a very nice built-in pool through the glass doors, even though a large part of the beginning and the end of the movie take place in Marcus's '$3900' portable pool and its subsequent replacement. (01:34:20)
Other mistake: After Guy gets hurt in the warriors/ducks game, the scoreboard is shown. It says that there is 15 seconds left in the third period, when it is really the second period.
Other mistake: When the general passes the clipboard to the President to sign the nuclear release, the clipboard is actually upside-down. (00:55:55)