Revealing mistake: When Avner finds Carl dead in the hotel bed, you can see a pulse in Carl's neck.
Revealing mistake: In the battle at the cathedral and at the end of the film when the footage is repeated, we see people hacking away at a torn up, dead body. The problem is their swords and axes are not damaging the body at all, revealing everything is a prop of some sort.
Revealing mistake: When Hitch is wearing the fat face mask you can see where it has pulled away from his skin right next to his right eye.
Revealing mistake: Jim's town is called "Cromwell", yet in the scene in which he steps from his van to enter the bar, there's a sign mounted on a street lamp which says "Historic Goshen". (The movie was photographed in the town of Goshen, as indicated in the closing credits.).
Revealing mistake: When Rose and her boyfriend are making a toast in her apartment we hear a perfect chiming sound. We can see that they're both holding their glasses by the bowl instead of holding them from the stem. Holding a glass this way would never allow a chiming sound.
Revealing mistake: Right after Darius blows the boats, Steele is on the dock firing at him. It is shown that he shoots a couple rounds but his finger is not on the trigger. (00:24:00)
Revealing mistake: When Adam jumps from the hay bale in the dance hall and the men catch and flip him, his stunt double is very obvious, his hair is darker than Adam's hair.
Revealing mistake: In the scene when the coach's friend (priest) also played by Martin Lawrence is praying with the team. Every time it shows the back of the coach's head in line with the front of the priest's head it has noticeably less hair than Martin Lawrence and you can tell it is a stand in.
Revealing mistake: When Max is singing the song "Betrayed", the bars of his cell shake visibly several times.
Revealing mistake: When FDR is getting put in the pool at warm springs for the first time, you can see see his normal legs and they have not been done over by CGI, to look as though he has suffered through polio.
Revealing mistake: After Majid commits suicide, when he is on the ground, you can CLEARLY see him breathing. I mean, it isn't even funny how much you can see him breathing.
Revealing mistake: When the president is thrown out of the window by Carpathia, it is obviously just a CG shot. Not only is the president obviously CG, but the glass from the window breaks into neat little triangles. Right.
Revealing mistake: When Eva falls off her moped, you can see the padding underneath her clothes as she is rolling on the ground.
Revealing mistake: When Ryer and Rand jump off Rand's window and down to the street, they land on a tree. Notice the severed branches; instead of being broken [presumably from the falling bodies], they are cut rather smoothly.
Revealing mistake: During the song "Remains of the Day", at one point, towards the end of the song, you can see metal wires in Bone-Jangle's wrists, revealing how the stop-motion character was kept together.
Revealing mistake: When Chas is being thrown up and down between the ceiling and the floor, if you look closely as Chas is falling from the ceiling to the floor and goes up again, when he goes up it's just a rewind of him falling down. (01:28:35)
Revealing mistake: In the very first scene, which takes place in a Moroccan sheepherder's meadow, the camera makes some gentle panning motion. The mountains in the distance can be seen noticeably moving not quite in sync with the foreground. The foreground is actually in Texas (according to the director's commentary), and the mountains were added in post production.
Revealing mistake: During the car chase with the railway train wheels, when some of the cars get destroyed and flipped, you can see flame and smoke from the bottoms of the flipped cars where the cannons fired to flip them.
Revealing mistake: In the scene when the hijacked bus gets crashed, you can see the tire skid marks on the road already from where they have performed multiple takes of this stunt.
Revealing mistake: The movie is set to take place in Connecticut, however, a train passing by is a New Jersey Transit train showing that it was, in fact, filmed in New Jersey.