Revealing mistake: When the Chairman is watching the TV screen where Damien Drake is being interrogated, the man steps in front of the screen and says "he's about to crack," then he walks backwards as if being pulled, but you can tell the moment Damien puts his legs around him, after several steps. So what pulled him back?
Revealing mistake: At the beginning, when the grandma zombie knocks off that guys head, a geyser of blood pours out. When the body falls forward and the blood splatters the camera, the body lifts up about three centimetres before it falls down, indicating that it is a dummy.
Revealing mistake: When the house is burning at some points we can see the flames inside the house are fake. If you look at the window you can see some of the flames are actually outside the house. The flames are just reflected in the window. (00:20:35)
Revealing mistake: Toward the end of the film when Catch has been left on his own by Barbara, and it begins raining heavily, he doesn't look like he is getting very wet. As the shot pans out, you can see on the street, that the rain is falling everywhere except for a perfect square around Catch, due to an off-shot prop.
Revealing mistake: When the song "Forever part of me" is right after the scene were both Kelly and Justin are talking to there friends about finding one another, right before the song begins the camera pans to Justin and behind Justin in the left side of the screen there is a guy lip-syncing to the words. But the words in the song have not started yet.
Revealing mistake: When the Bodyguard attacks the rival gang, he stabs one of the torch carriers, to which we get a close-up of. As the blade goes in, blood comes out - when the Bodyguard removes his blade, there is no stab wound, not even in the torch carriers clothes.
Revealing mistake: Steve's partner Angela has straight hair, but the stuntlady who doubles her in the city car ride has curly hair. (00:26:35)
Revealing mistake: In the motel room when Alec Baldwin hits Natalie, she hits the mirror, which shatters. She then has cuts all over her face, but there's no bleeding. All the cuts look like they have dried blood already. (01:16:50)
Revealing mistake: Rex the dog leaps through the protective wire netting around the baseball practice area. As he jumps through, you can see the netting split apart and that the edges of the 'broken' wire mesh are protected with some duct tape.
Revealing mistake: The movie takes place over the course of several years, as large segments of time pass between scenes of Will and Jane meeting at the airport, and other encounters. Thus, it is rather jarring to notice that their twelve year old children, Ben and Claire, don't appear to age at all. Young adolescents usually change in appearance quite drastically as they mature.
Revealing mistake: Throughout the film when we see wads of £50 notes they are quite fake as the print of the queen looks far too dark and the colours are off. Surely it wouldn't have been too much bother to put one real note on top of each wad? (01:06:50)
Revealing mistake: Although the film is supposed to take place in New England, and there are constant references to how "Americans" do things, all of the license plates are from British Columbia.
Revealing mistake: When Frank yells stop to Marion, you can see the marks on the road from a previous take. (01:05:20)
Revealing mistake: At the end of the movie when the Grandpa and grandson are tackled after being given the 'fortune cookies' right at the moment of impact the little boy has been replaced by a stunt double which is a grown man dressed in the same clothes. Like the dude has wrinkles and doesn't even resemble the boy at all.
Revealing mistake: It is really obvious Jackie Chan was on a wire when holding onto Roy at the end. His body floats and moves in a very unnatural way.
Revealing mistake: When Darcy has caught up to Elizabeth in the end and they are kissing in the street with the police cars around them, if you look at the side of the cars, you can see that these Las Vegas, Nevada police officers are driving cars from the Provo, Utah police force (where the movie was primarily filmed). (01:36:50)
Revealing mistake: The car that falls into the water has a surprising lack of damage after such a long tumble.
Revealing mistake: When Rolfe is walking down the hallway to Sally's apartment, there is an orb where the hallway is lighter colored and his legs seem to jump and undulate due to the special effect used to hide the fact that the actor is actually full-sized, walking on his knees.
Revealing mistake: The first night Ben brings Andie home, he starts the music on the CD player, but no CDs are spinning at all. Yet, the music still plays. He also changes the track mid-scene, and still no CD is spinning.
Revealing mistake: One of the accountants' computers has no power cord attached to it.