Corrected entry: At the end of the movie Harrison Ford gives Michelle Pfeiffer a drug that supposedly paralyzes all of your voluntary muscles, that way she will not be able to move, but she will be fully conscious as she slowly drowns in the bathtub. The drug he gives her, Halothane, does not do this, however; it is merely an anaesthetic. Furthermore, any drug that does paralyze your voluntary muscles, inevitably also paralyzes your respiratory system, and you suffocate, you don't just remain immobile until it wears off, like the movie leads you to believe.
Corrected entry: Towards the end of the movie, when Norman and Claire were in the car and then in the water his face was all covered in blood and cuts. The blood was still dripping as they were being lowered into the water, when it would have dried some. Plus, when you see him in the water, he has no cuts on his face.
Corrected entry: In the scene where Norman puts Claire in the tub to try and drown her, he fills up the bathtub to where it is almost overflowing. Well, on the front of the bathtub, there is a device that drains the bathtub at a certain point so the tub couldn't have possibly filled up to the point to where it would be drowning her in the position she was in. The device they used was obviously just a prop.
Corrected entry: When Norman pulls up at the house, if you look at the exhaust you can see the water vapour, only visible when a car is cold or warming up. Surely he doesn't work that close to home.
Corrected entry: When going to the full bath for the first time Claire rolls up her sleeve to pull the plug out. When she gets there she rolls it up again.
Corrected entry: When Michelle visits Madison's mother, the lady picks up a cat. As she holds the cat, she talks to Michelle. The camera pans back and forth from her to Michelle. With each camera move, the cat is in a different position. It starts out stretched out like a baby, then sometimes it is curled up on her lap.
Corrected entry: When Claire and Jody are trying to contact Mary Fewer with the Ouija board, Jody states that the magic indicator is not moving. However, between shots it mysteriously does move from one letter to another.
Corrected entry: When Claire is in the bathroom having the séance, "supernatural" light appears and the door starts to open. We come to learn that it was only the dog, but the dog comes in a different door than the light.
Corrected entry: At the end of the film when the truck goes into the water, the headlights fizzle and go out. In subsequent scenes, the headlights are on again.
Corrected entry: When the photo frame falls by itself for the first time, Claire picks up the glass from the floor and the leftovers in the frame, yet in the lower right corner she leaves a rather large sized piece of glass. In the next scene she puts it back on the desk, and the piece is gone.
Corrected entry: When Claire and her friend are having the seance in the bathroom, the camera goes over the Ouija board the first time and the moving piece is over the "T". The camera then focuses on the two of them and you can see that their hands haven't moved. When it goes back over the board again, the moving piece is over the "U". Keep in mind, this is before they remove their hands and it starts to move.
Corrected entry: The photo in the picture frame that Claire breaks is a newspaper clipping of Norman receiving an award. She turns the clipping around and sees an article about the missing Madison. How could the article be in the same paper as the award ceremony if that was the night Claire discovered Norman was having an affair with Madison?
Corrected entry: The ghost is trying to contact Claire. She uses Claire's Mac. Claire is walking upstairs and in the mirror we see the computer booting up without assistance. Besides the fact that you can set a start-up and shutdown time on Macs (i.e. that's not supernatural by definition), when it does start to boot up, we don't see a happy Mac in the centre of the screen, and the MacOS splash screen and then the extensions load at triple or quadruple speed. Claire probably has a Performa 6300, which has a top speed of 100mHz. I have a 400mHz G4 and it doesn't boot up HALF that fast!
Corrected entry: At the end of the movie when Claire is in the truck trying to escape Norman is slowly chasing after her. To show that he made it onto the boat attached to the truck, they show his white tennis shoe fall off and roll onto the street as Clare is speeding away. Later they show that he was wearing boots because his foot gets caught when he was stuck under water. It's not the phone - that was left in the house.
Corrected entry: Norman places his call to 911 to report information about the missing girl, but actually dials directory assistance at 411, and tells them about the missing person. Any self-respecting 411 operator, hearing what he heard, would have sent the police to Norman's house anyway.