Other mistake: When Ray shoots Kelly twice in the chest, and then himself once in the arm, all three shots are heard within a few seconds. However, in the flashback at the end, Ray shoots himself about ten seconds after.
Other mistake: In the end credits, the filmmakers misspell the name of the town they wish to thank. They spell it "Coupville", but it's actually spelled "Coupeville."
Other mistake: After they kill the alien/teacher and leave the school they pass one girl in a blue/green tee-shirt with a waterbottle. Just one scene later you see this girl again under a tree, suddenly in front of them.
Other mistake: Frank visits Walenski just before the tuning, but the clock in his house says it is 1 o'clock. (00:27:17)
Other mistake: The killer leaves the corpses of the Dean and Parker where they are and walks away, but they later appear in the room at Stanley Hall.
Suggested correction: That is because the killer is moving around the bodies. Just like when Damon is killed. His body is not where it was left when Alicia Witt comes back with the cops.
Other mistake: When Karla and Ty are in the jacuzzi, the "Bob Marley" guy shows up and says they can't be there because it's after midnight. At the same time, the fisherman is killing the hotel's maid who is knocking on doors to clean the rooms. Why in the world does the cleaning lady do the housekeeping after midnight?
Other mistake: When Howard and Buglar return home after years, it's winter and everything is covered with snow, but neither their nor Sethe's breath is cloudy. (01:54:35)
Other mistake: Near the beginning of the movie, the Dude is shopping at Ralph's. He is writing a check, and dates it September 11th, 1991. At the same time he looks up to see a TV with President Bush saying "This aggression (against Kuwait) will not stand." The incident against Kuwait started in the summer/fall of 1990, not 1991. The Stranger (Sam Elliot) and Walter also mention the Gulf War in the present tense.
Other mistake: When Brad gets hit by a car, the car passes by a window, but there's no reflection of the car in the window.
Other mistake: Gary Sinise is in the hotel hallway and sees various characters going into different rooms. The camera goes over the top of the wall and we see him from above as he enters a room. The camera continues to track into the room perpendicular to the hallway. Eventually the camera passes over the back wall of Sinise's room and we begin to see these other characters in their rooms. This is impossible, these rooms are not behind his but on either side.
Other mistake: They're meant to be on rebreathers (they recycle the air around the system, so you 'rebreathe' it), yet in the u/w scenes, it can be seen that they're on open circuit systems, i.e. conventional scuba, as they're venting exhaust gases. Rebreathers do not release bubbles in the quantities shown.
Other mistake: In the scene where Bates leaves her motel room to back her car up to the door, he doesn't use keys to start the car.
Other mistake: Christopher Reeve's nurse has just installed the camera, and they are showing it to Daryl Hannah. During a close-up of Jason Kemp's camera displayed by a monitor, she notices that the woman victim of domestic abuse is wearing too much make-up for that time of the morning, no doubt to hide the results of the beating she took. Jason does not move the camera at that point, but a minute later he (it actually looks like she is the one doing it, but there's an engine buzz so it should be Jason operating it, not her turning it by hand) rotates it to the right. The visual in the monitor is unchanged from earlier even if the camera moved. (00:33:30 - 00:34:30)