Sammo

Continuity mistake: The sheriff and Dewey are talking; one is smoking and the other has a cone. When the sheriff says that "it's been confirmed", Dewey takes a mouthful of ice cream, but at the cut he does it again, with perfectly clean lips and without having even the time to swallow the previous. Since the joke is that he takes a mouthful each time the sheriff takes a puff of smoke, he takes one too many, one before and one after the cut. (00:59:50)

Sammo ★

Continuity mistake: Billy gets in Randy's face as he says he's killer. Stu puts him in a hold, but the position of his hand in the lock changes between shots. (00:57:05)

Sammo ★

Continuity mistake: Randy wonders with Stu if Sidney may go out with him now that Billy kinda outed himself as a killer. Stu goes through extensive Matthew Lillard-isms hunching forward, but in the next shot when he answers deadpan "No. I don't. At all." he's standing straight. (00:56:15)

Sammo ★

Character mistake: Sidney asks on the porch why Cotton couldn't prove that he was having an affair with her mom. Tatum's answer is "Well, you can't prove a rumor. That's why it's a rumor." That's quite the preposterous answer, especially since the point she wants to make is that it was not in fact 'just' a rumor.

Sammo ★

Continuity mistake: Once Ghostface has stabbed Mr. Himbry, his knife points up, forward, up depending on the shot. (00:53:10)

Sammo ★

Continuity mistake: When Ghostface stabs Mr. Himbry, he is holding him by the shoulder in one and just one shot, and not in the others. (00:53:05)

Sammo ★

Continuity mistake: When Dewey says "I'm 25 years old" to Gale, three people are coming down the stairs behind him. Next shot and they already went way past Gale. Same in the closing part of the scene as she says "Please, call me Gale!" and the guy above Dewey who is going up the stairs passes her by. (00:48:55 - 00:50:15)

Sammo ★

Continuity mistake: Mr. Himbry calls the two expelled students "Desensitized little sh*ts", pointing the open scissors at him. In the next shot he's looking at him but he changed position, since the scissors are gone from frame. (00:45:20)

Sammo ★

Continuity mistake: Sidney bumps into Billy around the corner after she walked away from Tatum and Stu at the lockers. Behind Billy there's a short-haired student with a sleeveless striped top that turns the corner followed by a long-haired brunette. The two extras appear again in the next shot behind Sidney, taking almost 10 seconds to walk 2 meters. (00:43:00)

Sammo ★

Continuity mistake: When Sidney tells Tatum to wait "Just a second" because she's going to talk to Gale outside school, Rose McGowan's bag has slipped off her shoulder during the take, but in the next shot she's wearing it properly. (00:39:55)

Sammo ★

Continuity mistake: Sidney is in Tatum's bedroom. Tatum is playing with her rabbit toy while Sidney turns the other way. Look at the notebook, pen, ice pack. Sidney doesn't do anything but a few seconds later Tatum's mom calls her and when Sidney turns towards her the objects have changed position. (00:37:10)

Sammo ★

Continuity mistake: When Tatum comforts Sidney telling her "I'm gonna get you out of here, okay?" in the background her brother comes out of the door holding the 'Father Death' costume box. The sheriff by him is holding an orange paper, but at the cut he's got his hand behind his back, no orange slip. (00:35:00)

Sammo ★

Stupidity: Dewey and Sidney jumpscare each other at the front door. There's just no possible logical reason for a deputy (or ANYONE) to be holding the mask the way Dewey is in the scene. If he were leaning against the door, he would have lost his balance or reacted in any way to the door shifting. (00:30:30)

Sammo ★

Continuity mistake: When the killer pops out from the closet after Sidney closed the front door, he's holding the knife above his head, but it cuts then to a shot of him raising the hand from a position below the waist. (00:28:35)

Sammo ★

Continuity mistake: The gang is chatting about the murders and their interrogations. Stu responds "There's no way a girl could have killed them" to Tatum's complaint that nobody asked her if she likes to hunt. In these two shots, Rose McGowan's hair is wildly different. (00:20:00)

Sammo ★

Continuity mistake: When Tatum asks "Why would they ask you if you like to hunt?" look at the blue backpack. Next shot, and the light is on it in a different position than before. The position of the various actors as they eat grapes also changes. (00:19:50)

Sammo ★

Revealing mistake: Sidney is teasing Billy, and as a sort-of-reward to him she flashes him before he goes. That's the idea, but in the view from behind you can actually see through the nightie the shoulderstrap of a bra. (00:16:55)

Sammo ★

Visible crew/equipment: When Drew Barrymore runs away after the killer just called her 'blondie', there's nobody behind her character, and yet a new shadow is cast on the wall to the left when the camera follows her around the corner to lock the front door. (00:03:50)

Sammo ★

Revealing mistake: When Sidney in Ghostface costume stabs Billy with the umbrella, you can see the squared shape of a protection pad under Skeet Ulrich's shirt (which she misses the second time around, famously prompting a genuine scream of pain from the actor). (01:39:55)

Sammo ★

Continuity mistake: Gale falls back on the unconscious Dewey after Billy kicks her. Her jacket is draped across the chest touching the white button of her vest. When Billy gets on his knees by her though, the jacket is fully open. (01:37:30)

Sammo ★