Continuity mistake: Hallie takes the remote control off the top of the TV to turn it on. But later when they return in front of the TV to watch the news report, the remote is back on the top of the set. Also, the position of the video console which is also on top of the TV has changed, the position of the clothing on the chair next to the television has repositioned and lastly, the items on the window sill behind the TV set have completely changed. (00:12:20 - 00:13:40)
Continuity mistake: When Sidney is about to get in the car with the policemen, she has a rather large noticeable spot on her chin. In the following scenes, it is gone.
Continuity mistake: When Gale kisses Dewey she has no more lipstick on her mouth, then in the next shot she has lipstick on.
Continuity mistake: When Cici is thrown from the balcony there is debris from the window all around her (glass & window pane fragments), but if you watch when she is thrown through the window in the first place, it is only a bit of debris went that far away, not nearly as much as it is shown around her. (00:33:10)
Continuity mistake: During the scene where Gale is underlining the names with the connection to Woodsboro on the board, she underlines 'Stevens' with the camera behind her and the line reaches across the whole name. In the next shot, the underline is just reaching up to the 'n'. (00:41:40)
Continuity mistake: In the beginning of the movie, Jada Pinkett orders a popcorn and a small Pepsi from the concession stand. As she walks back in to the theatre she clearly has a jumbo sized large. (00:05:20)
Continuity mistake: When the killer attacks Sidney and the bodyguards in the car, he smashes through the driver's side window, leaving some of the glass still around the edges. When the killer drives off, these fragments have dissapeared and the window is totally gone. (01:22:40)
Continuity mistake: When Debbie Salt is holding the knife on Sidney, the knife changes positions from time to time. (01:42:30)
Continuity mistake: When Dewey and Gale are in the classroom and as they are making out, when they realise that they are being filmed, Dewey has one side of his jacket off below his shoulder and in the other camera angle it shows that he has it perfectly on. (01:18:50)
Continuity mistake: When Dewey is trying to get Gail's attention on the glass, his hand changes from being open palmed to a fist, between shots. (01:21:50)