AidanN

Factual error: Gale Weathers points the gun at Billy and tries to shoot him, but the trigger doesn't pull back. This is explained by Billy when he says that the safety was on. Fine. But that gun is a Beretta 92F, and on a Beretta 92F when the safety is on, the trigger WILL pull back, but no round will fire. (01:37:20)

AidanN

Continuity mistake: When Stu puts the voice box and phone in Sidney's dad's jacket pocket and lets him fall, when he hits the ground the voice box partly falls out, but then when they show the dad again the voice box is tucked back in.

AidanN

Audio problem: When Steve is on the porch and gagged, the killer instructs Casey to turn off the lights. Steve shakes his head and lets out some muffled 'No's. When the lights go out he says one last 'No' but you can still tell he isn't saying it. Even though his mouth is gagged, he makes no body movements to correlate with his shouts like he did before, especially not his jaw. Despite it being dark you can still tell. (00:06:10)

AidanN

Continuity mistake: When Drew Barrymore is running to the kitchen after the patio windows break she grabs a knife. When they show her going through the doors from the inside to go outside her knife's curving blade is pointing toward the celling but when the show her leaving the house through the doors from the outside the knife curve blade is pointing down. (00:09:25)

AidanN

Continuity mistake: When all the guys are sat outside of the school talking about who (a male or a female) is the murderer, Tatum's leg is behind Stu's leg. In that same action, we go to a close up and suddenly Tatum's leg is in front of Stu's leg. (00:19:55)

AidanN

Visible crew/equipment: There is camera equipment reflected in the door window when leaving the police station. (00:36:10)

AidanN

Continuity mistake: In the scene where Tatum gets closed in the garage door, the first time it shows her arm hanging down. In the next scene, it shows her arm caught in the door. (01:07:30 - 01:22:15)

AidanN

Continuity mistake: When Tatum calls Sidney at 7:15, she reaches over to get the phone. The sleeve is at her elbow in one camera angle, but it's instantly at her wrist in the shots before and after. (00:25:15)

AidanN