In the beginning of the movie when Sidney first walks out of the dorm building we see a red sticker on the door by where she puts her hand, but in the next shot from the door outside, if you look closly the red sticker is not there. In fact it is an entirely different door. [There is no mistake here. As Sidney leaves the dorms, we can see there are two sets of double doors, and it is the second set of doors that have the red stickers on them. In the inside shot we see Sidney pushing open the first set of doors, but when the shot changes to the outside of the building, Sidney is now pushing the second door which has the red sticker on it.]

The book Gale Weathers wrote seems to know lots about the conversation Casey (Drew) had with the killer in the first scene of Scream. But seeing as both Casey and the killer died in the film, how could Gale have known so much about the conversation Stacey had on the phone? [What dialogue appears in "Stab" has little to no resemblance to the conversation between Casey and Billy in "Scream". They knew they had talked on the phone and logically would have based the conversation based on what little they knew of that night, and on the phone call Sidney had with the killer later on.]

When Cotton is arrested in the library, the sweatshirt he is wearing is blue. At the police station, although he has taken it off, you can see that it's grey. When he leaves the police station, the sweatshirt has returned to being blue. [I just watched this, and I can assure you Cotton's sweatshirt remains gray throughout the scene.]

If you look in the background a little bit before Randy gets pulled into the van and killed, while he's on the phone you can see cop cars all around blocking the set. [This isn't a mistake. The cop cars were already there in all previous scenes of the surrounding, because of the murders that have been going on again.]

When the blonde girl gets stabbed as the killer stabs the knife into her you can see he just slides the knife along her robe to give the appearance of getting "stabbed". This is also visible when he pulls the knife out of the blonde, cause no blood comes out with the knife or on the knife. [Blood doesn't immediately flow from a stab wound or cut. I sliced the palm of my hand to the bone with an X-acto knife, and it didn't bleed for at least 10 seconds due to shock. It bled a whole lot after that, but initially didn't bleed at all.]

When Derek is captured by the frat guys, he has weird marks drawn on him in red marker. These are clearly visible when Rebecca Gayheart and the other sorority girls are taunting him with prop knives. However, a few scenes later when the guys pour beer over him the marks have dissapeared, returning when Sidney finds him. [The weird marking is stage blood (which is completely washable using alcohol). All of the frat boys and sorrority girls are in the play at the theater they are punishing Derek in for giving away the Greek letters, which means all of the frat boys and sorrority girls were allowed access to the stage blood for self rehearsel and actual rehearsel. Also the play they are acting in includes numerous deaths which explains the stage blood. So the weird marks were washed away, over time, by the beer.]

When Sid is moving the theatre blocks they are knocking people over but theatre blocks are made of styrofoam and so they would weigh next to nothing... [The killer, Debbie Salt/Mrs. Loomis, was only collapsing from the shock. You can tell by her expression and her gasp for air. The shock came from the moment of complete silence, then the crashing of the styrofoam theatre blocks.]

In the movie Stab, there are many details shown that the writer couldn't possibly have known. For example, when Sidney is talking to Billy, the conversation is practically word for word. Sidney didn't want Gale making the movie, so she wouldn't have told her what happened. [In the end of Scream, Sidney was thankful for Gale saving her life by shooting Billy during the final attack. Sidney most likely told Gale the whole story as a kind of compensation, which people do in movies and real life. Secondly, Sidney did not know about the movie, only the book which the movie was based upon, and there is no saying Sidney did not want Gale making the movie or the book. Sidney was only angry with Gale for setting up a reunion interview with Cotton Weary without her consent.]

In the beginning of the film above the box office the date says April 12. When Sidney looks at her watch the next morning it's not even close to that date. [So Sydney's watch is wrong. It happens.]

When the officers pick Sydney and Halle up at their dorm, they tell them they're going to a safe house straight away. It can't be more than 5-10 minutes later when the killer catches them (since they're still within a short run of the university campus), and even allowing 20 minutes for the car crash scene and Halle's murder, and another 15 for Sydney to run back to the theatre, it's still barely 45 minutes. In that same time, Derek has been kidnapped, carried to the theatre, stripped and tied to the hanging star, then tortured as the frat guys and sorority girls throw a party around him, which they've also had time to completely clean up (since there's no trace of the party when Sydney gets there). There is no way all of that could have happened in the time frame allowed. [It's not unrealistic for the frat guys and girls to kidnap Derek, take him to the theater, and tie him up in that amount of time. They could do that in 20 minutes. We also don't see that the kids have a whole party. They just pour beer on Derek.]

In the scene where Gail realises that the killer will be on her footage it is day, but when her and Dewey are running into the school of film, or whatever it is, it is almost completely dark. [When Gail realises that the killer might be on the footage it was dusk, and most probably they had to search for a place to view the tapes, which could take a while.]

In the scene when Dewey is being stabbed, there is blood all over the window. The killer run to the door to get Gale. When he returns to the room where Dewey was stabbed there is no blood on the plexiglass. [It is a different window that the killer throws a chair at and smacks his hands on trying to get in to kill Gale. If you look closely you can see the corner of the window that Dewey was stabbed at when Gale is running toward the door.]

When Dewey is beating against the soundproof glass, Gale should have heard him since the vibration was transported through the glass (after all she does hear the killer smashing the chair against it from inside). [I'm not going to pretend to be an expert on soundproof glass, but the reason Gale hears the killer smashing the chair against the glass is because at that point the door connecting the two rooms has been opened (the killer tried to get in but Gale blocked it with a cupboard/shelf thing) so the sound would have been audible.]

All the killings in Scream 2 are done by a left-handed killer. But neither Mickey nor Mrs. Loomis are left-handed. This is proofed in different scenes e.g., Mickey holds the video camera in the right hand and Mrs Loomis writes with her right hand. [It's possible for Mickey and/or Billy's mom to be ambidextrous.]

In the film class scene Randy accepts that "The Godfather, Part II" is better than the original, but he later disallows "The Empire Strikes Back" as it is part of a trilogy. This makes no sense, as "The Godfather, Part II" is also part of a trilogy. [Empire Strikes Back was part of a planned trilogy (as Randy said, "Totally planned"). The Godfather series was not planned as a trilogy. They decided years later to make a third one.]

At the party, when Mickey, Randy and Sidney's friend (forgot her name - the one who's studying psychology) are talking about The Empire Strikes Back, the girl says that "these furry creatures were nice" and Mickey says: "Ewoks - no, they sucked" (or something). But Ewoks appear in The Return of the Jedi, not in The Empire Strikes Back. It may not be a goof, since Sidney's friend may not know Star Wars trilogy that well - however Mickey should. [She was just saying they were cute. She didn't have to know which movie they came from. ]

Sidney is told to hit Alt+M in the library when her computer freezes to access her message, but when she does this the sound effect used is of 4 keys being hit, not 2. [This type of command requires you to hit the combination of keys at the same time. I don't know about you, but I often have to hit such multiple key commands more than once because I did not press them at the same time. Perhaps that is what Sydney did here.]

When Cici (Sarah Michelle Gellar) is being stalked on the phone at her sorority house, she runs outside and the phone begins to break up, she walks inside and still can't get clear reception, then her friend talks to her and she hangs up when the friend leaves the phone rings again and Cici is right near the front door and the phone reception is perfect even though before she was at least a metre into the house and couldn't hear properly... [as anyone who owns a 900 mhz or a 2.4ghz phone can attest to, you can receive poor reception in your house even if you are next to the phone's base one minute and have it be fine another. This is typically due to interference. 900 mhz gets interference from just about any apliance running on that power grid (local neighbor hood). The 2.4ghz is usually from broadband interferance. These are a few examples on why the phone was acting up.]

In the scene when Sidney is being chased by the killer for the first time, and Derek is outside the door, Derek is leaning against the right side of the door, then the killer lunges with the knife and stabs it through the left side of the door (to him left, to Derek right). Then it cuts back out to Derek who is still on the right but the knife is on the other side of the door - Derek should have been killed. [Actually, from the outside (Derek's perspective) the knife IS protruding from the right side of the door. Derek is further to the right by the knob. It's misleading because the stile (vertical part of door frame) of this door is so wide; however, you can see the left panel of the door at the extreme left of the camera frame.]

When Cici is murdered, she is stabbed at the top of the stairs, then thrown out the window, but in the second or two we see of her being thrown out, the bloodstain has dissapeared. When she lands on the balcony it has reappeared. [Cici is never stabbed in the inside of the house, as we would have heard the knife penetrating her skin, but we don't. Cici is only stabbed twice on the balcony on the outside of the sorority house. This is verified by Debbie Salt later when she is talking to the coroner and she says, 'So it's a double stab wound, definitley not suicide'.]