Revealing mistake: Towards the end when Harmony calls Perry's phone as she's lying on the ground, Harry grabs the phone and looks at the caller ID to see her name. Unfortunately that's not the display showing who's calling. Anyone who has a Nokia phone will recognise that that's showing the contact list with just two entries - Harmony and a random number. The fact that it says "contacts" at the top of the screen is a bit of a giveaway.
Revealing mistake: When Kadaj kneels in front of Rufus Shinra, watch his sword. As he kneels, it goes through the floor.
Visible crew/equipment: When Betsy is having the sheet pulled up over her, the lightning flashes and lights up the visibility. You can see a wire which is being used to guide the sheet.
Continuity mistake: Towards the end, as Willis and Pollack drive the van, Willis is seen inserting the magazines in two handguns. The next scene shows hims putting the second gun on the center console, it has no magazine in it.
Revealing mistake: When Dekker follows Richards on a motorbike he drives through a glass door with wooden frame. The class shatters noticeably (about a half second) before the bike even touches the door.
Continuity mistake: After Amy stabs the knife into the table next to the bed, it changes position in following shots.
Continuity mistake: In one scene with Dahlia and Ceci sleeping in the same bed, Dahlia is awoken from a bad dream. The kid rolls over and pulls the blankets over her shoulder. The next shot, from the hole in the ceiling, shows the blankets around her waist.
Factual error: The vehicles in the movie have front and back license plates. The state of Florida does not have front plates, only back.
Continuity mistake: After Jimmy draws the pentagram on his hand to connect the dots, he holds up his hand to show his sister and the drawing is different from the one shown before. The outline is much darker.
Continuity mistake: The name on Travis' helmet switches between 'Ryer' to 'Travis' several times throughout the movie.
Visible crew/equipment: When Jack and Jackie are waiting in the car for Dr. Becker, Jack is looking in the side mirror. When Jack sees him he opens the door, a camera is visible in the side mirror.
Continuity mistake: When Tim goes to the house and Kate falls off her horse, they go inside. When she leaves you can hear a car engine start. If she rode her horse to the house how did she get her car there?
Other mistake: In the credits at the end of the film "Editing" is spelled "Edting."
Continuity mistake: When Bob and Robby are eating Mexican food, Robby borrows a bottle of hot sauce from a neighboring table. When he gets done putting the sauce on his food he places the bottle on the right side of the table. The bottle remains there until the end of the conversation. At the very end of the conversation we see that the bottle is now in the center of the table directly between them.
Other mistake: When Owen first meets Dodger, and asks if its that obvious he's a transfer, she tells him "It's a small school, word travels fast." During a flashback to this scene at the end of the movie she says "word spreads fast," instead.
Continuity mistake: Sean is standing by a window when Ray throws a chain through it and the chain wraps around Sean's neck. The following scene has Sean being pulled through the window, breaking away all the glass and the wooden dividers. When the scene cuts to the outside and the kids looking at Sean being pulled away, two broken wooden window sections have managed to regenerate and are visible from both the right and left sides of the window frame.
Other mistake: When the zombies come out of the river and start marching, look closely. The first zombies to come out wear wet clothes, but the ones in the back are dry.
Continuity mistake: In the scene where Nat and Iris make love for the first time she takes his shirt off of him. But in the next shot it is back on, and in the following shot it is off again.
Continuity mistake: Just after Tom has finished making love to his wife on the stairs we see him lying there with his left arm across his groin area. When the shot changes, his arm has moved up crossing his chest. (01:06:55)
Visible crew/equipment: The cameraman is visible in Ben's sun glasses as he is video taping himself at the gas station.