Other mistake: Right at the very end, when all the prisoners are standing in the room, it starts to slowly zoom in on Alice in the middle, but watch the blonde girl on the left of Alice - she starts laughing for no reason at all as Alice smiles to herself. I don't think it had anything to do with the film either, because it didn't show any reason why she would just start laughing like that.
Other mistake: When Earl's wife is pulling into her garage after picking up the medication, wet tyre marks (presumably from previous takes) are visible on the garage floor.
Other mistake: When the agent shows the spiral for the pattern of the messages, the spiral goes through South America and America. But the agent, before, showed two messages that aren't in the pattern; one in England (Stonehenge), the other in Cairo, Egypt.
Other mistake: When Carter is sitting in front of one of the small hatch-like doors around the time that they were climbing the ladder to escape from the rising water, one can clearly sea that the door is no more than twice the width of Carter (4 feet at most) yet the 45 foot shark about 10 to 12 feet wide seems to have no trouble squeezing through. (01:01:40 - 01:04:20)
Other mistake: One of the boys says "Nice hat, Mum" but the subtitles read "Night out Mum?" (00:47:20)
Other mistake: When Woods gets shot by the nails fired by the small robot, the amount of blood in his sweater keeps changing during the following scenes.
Other mistake: During Brown's dream, where he saves a runaway bus, Brown throws a hook, which latches onto the bumper. One shot of a middle-aged woman staring in awe was obviously done backwards, because the letters on the store behind her are written and spelled as such.
Other mistake: When Evie is in the library and all the book cases start to tumble over, if you look at one of the corner book cases you can see a piece of paper landing on it and the books are clearly painted on a flat piece of cardboard. (00:13:30)
Other mistake: When Zach is watching Laney at the show, there are two shots where Laney, Mitch and the little people say, "Be silent, be still". In the first, Mitch's legs are far apart and on the ground, and in the second shot his legs are very close together, with no time to move. (00:22:35)
Other mistake: On two occasions in the movie, Ashley Judd slams a car into another (she drives Tommy Lee Jones' car into another and over the side of the ferry boat, and later she smashes a stolen pickup truck into the side of a car). In each case, the car she is driving emerges from the crash without a scratch on it, not even a damaged headlight.
Other mistake: Near the end of the movie, Ichabod, Katrina and the young boy are in the old windmill when the horseman arrives. When the three good characters jump onto the moving sails Ichabod drops a lantern down to the floor setting the whole windmill on fire. He, the little boy and Katrina jump off the sail onto the ground and start running back to their carriage some yards away. A camera shot shows the top of the building explode and we see a very quick shot of the whole windmill exploding in flames, but Ichabod, Katrina and the little boy have disappeared. Two shots later they are still running to the carriage. (01:30:25)
Other mistake: During the scene where the Asian man is fighting off a security guard, the guard kicks his head back one time when no-one appears to have hit him.
Other mistake: As the tarantula approaches the first small desert town (when Lovelace orders Grant to surrender the government to him), look at the townsfolk. Not one of them pays any attention to the noisy, giant metal spider as it lumbers towards the town. In fact, none of them react at all until the first building explodes. I guess giant spider robots were a common sight in the middle of the 19th century West.