Continuity mistake: In the opening scene, the position of the bag straps and tee-shirt straps on Maureen's shoulders keep on changing. (00:00:55)
Continuity mistake: When Phil and Maureen enter the cinema, Phil puts his arm around Maureen's shoulder. But in the next shot his hand is placed on her back instead. (00:01:40)
Continuity mistake: When Maureen and Phil arrive in the theater, immediately at the beginning before the camera even gets fully in focus you can see by the door a blonde girl putting on the Ghostface hood, with her partner helping her. The camera cuts away for a second, and in the next wide shot you see her repeating the gesture. (00:01:40)
Continuity mistake: When Phil and Maureen get inside the cinema and sit down, Maureen removes her bag from her shoulders. But in a following shot of her, you can see the bag straps back on her shoulders ("You see your boyfriend anywhere?"). (00:04:10)
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: In the opening scene - the premiere of Stab - when the girl is about to go back into the theater, you see the door into the theater. In the next clip, when she enters - the door is much wider. (00:06:20)
Continuity mistake: When Maureen goes back to her seat and starts putting on her jacket, the dude at her side begins waving his arm super-enthusiastically making happy coos. She finishes putting her jacket on and the guy, who is still making those sounds in dub, is sitting composed. (00:07:05)
Continuity mistake: When the girl - during the Stab film - touches her boyfriend's jacket and gets blood on her hands - in the second clip there is much more blood on her hands than in the first clip. (00:10:10)
Continuity mistake: In the beginning where Jada Pinkett Smith is stabbed in the back, you see a white girl to her right look down at her arm as Jada's blood lands on her. If you watch the background closely as Jad is dying and stumbling around, the same girl is still looking around, as if it just happened. (00:10:10)
Continuity mistake: During the last stabbing of Maureen Evans, the killer puts his right arm around her and stabs her with his left; but from the back view, his left arm is around her, and he is stabbing her with his right. (00:10:20)
Continuity mistake: When Maureen's boyfriend reveals not to be Maureen's boyfriend at all, the height he holds his knife at changes between shots. (00:10:25)
Continuity mistake: During Maureen's death scene, at one point the killer has an arm around her waist and as they make their way through the crowd of the most unruly moviegoers in history there's a girl in a blue dress that runs past them. Behind her there's a blonde lady that is drinking from a Pepsi paper cup and stands to cheer. In the next shot she's still cheering but from her seat, her cup switching hands too. Subsequent shots from the initial angle feature her again bopping on her feet. (00:10:45)
Continuity mistake: When Sidney wakes up and answers the phone, the position of the watch on the desk, beside the caller ID, changes between shots. (00:11:50)
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 grabs the caller ID device, the position of her fingers on it change between shots. (00:12:30)
Continuity mistake: When Sidney leaves her dorm room to head for the shower and Hallie follows, you can see the open wardrobe by the dorm door, and there is a jumper visible hanging from the wardrobe door. But when they walk back into the room to look at the news on TV, the jumper has moved and now there is a bag visible in front of it as well. (00:13:05 - 00:13:50)
Continuity mistake: In her room at the start, Sid's hair is a little bit over her eye. She talks to her roomate and walks out of the room. The next shot her hair is perfectly behind her ear, but she didn't have time to put it back. (00:13:05)
Continuity mistake: Sidney tells her friend Hal that she doesn't think she's going to be able to make it to the martini mixer party. Hal goes "Whaaaaaaa?" as she is folding a cute pink thingie, which rests in her lap. In the background in the next shot we see the pink fluffy towel is now further down on her knees. (00:13:55)
Continuity mistake: In her opening shot, CICI says that you can't blame violence on entertainment. Behind her, out of focus, there's a student with a beige shirt. You can see his left hand, but in the next shot he has his right arm crossed on top of it. The rest of the scene goes on with that extra's motions not matching at the cuts (he's touching his chin next time, then he isn't). (00:15:20)
Continuity mistake: When the Artsy Teacher (that's how he's credited) asks if the student thinks the killer is trying to make a real life sequel, he's sitting straight. He is then suddenly hunched over in the next shot. (00:16:00)