Revealing mistake: During the opening scenes, just before the "double tap rule" a car hits a zombie in a security guard uniform. The windshield breaks a split second before the zombie hits it.
Suggested correction: The glass breaks at absolutely the right moment just when the zombie hits it.
Visible crew/equipment: In the scene in which zombies climb the Tower of Terror-style ride to get Wichita and Little Rock, a safety harness is briefly visible on one of the male zombies.
Continuity mistake: In the scene at "BM's" house, when Columbus and Wichita are drinking wine and talking about 1997, the bottle candles on the table between them change positions and heights between camera angles.
Continuity mistake: When Bill Murray first does his signature hand pray/bow maneuver for the praises from Tallahassee, Bill's hands go instantly from up in front of him to his pockets between camera angles.
Continuity mistake: The yellow Hummer goes from being initially dirty on the doors, to shiny clean when they get out to investigate the girls' Cadillac when it breaks down.
Visible crew/equipment: The scene where Tallahassee is smashing the windows of a black parked van in anger, note a cameraman's legs come into shot below a poster in the shop window directly in front of the van.
Suggested correction: It's Tallahassee's legs! Extremely obvious in a window reflection.
Other mistake: After Columbus wakes up and realises the girl he let stay the night has turned into a zombie, he repeatedly hits her over the head with the commode top, but in the next shot, it is clean as a whistle - there is no blood or head matter on it at all. Also the bottom of the lid is real with grooves and crevices but after the second hit in the living room the bottom ridges are perfectly oval and smooth.
Suggested correction: He hit her in the place where there is hair on the head, he left no wound there, why in the world should be marks on the lid? It would be a mistake if there were marks after the impact shown.
Continuity mistake: When Little Rock takes Columbus and Tallahassee hostage inside the Hummer, she holds up a gun to Tallahassee's neck. In this shot, her hair is in front of her ear. The next time she is shown, where she shoots the gun through the sun roof, her hair is shown tucked behind her ear two different ways. Seconds later, when she takes Tallahassee's gun away from him, her hair is in front of her ear again. This pattern continues for the rest of the scene. Since both of her hands were on the gun, she shouldn't have been able to adjust her hair.
Continuity mistake: When Tallahassee first enters the fried Twinkie shop storeroom, there are Twinkies hanging out from the box. However when he goes to grab one he has to reach inside and there's not any outside the box anymore.
Continuity mistake: When Rule 4 (Seatbelts) is shown, the arms of the woman on the ground change position.
Factual error: During action sequences in the amusement park the girls attempt to escape in their Hummer, and a zombie head-butts the passenger window, causing it to shatter. As has been demonstrated on numerous occasions, including a Mythbusters program, tempered automotive glass will not break when struck by a blunt object and that would include a zombie's head. Only a blow from a sharply pointed object will break tempered glass.
Other mistake: When Columbus and Tallahassee open the back of the Hostess truck, a bunch of Snowballs fall out. During the shots from the inside the truck, on the right side, you can see some packages of Twinkies. It might not be easy to make out of the shape, but you can see the label on the package. I guess they should've done a more thorough search of the truck. (You might need widescreen to see this).
Continuity mistake: When the girls are on the blast off ride and they shoot the control box, you can see that they are 1/4 of the way down but in the next shot they are all the way at the top of the ride.