Continuity mistake: When the girls are at Lori's, just after Kia asks them if they think she needs a nose job, the lights flicker. When they flicker Kia is holding a compact in her left hand and she begins to close it. Both hands are up by her face but then the angle changes to a wider shot and her left hand is empty and on her lap and the compact is in her right hand as she places it on the sofa.
Continuity mistake: In the scene when Kia and Gibb meet Lori outside on the school bench after Trey's death look a few moments later, you see a close up shot of Gibb putting the cigarette towards her mouth and almost reaches her lips, in the very next shot Gibb has the cigarette down in her hand and then a second later she then puts it to her mouth.
Continuity mistake: In the fight scene on the pier, just after Freddy has sliced off Jason's fingers, Jason blocks the machete, Freddy slashes him with the glove and then cuts Jason's chest with the machete and raises the machete for a downward blow. They are now standing face to face. However, when Freddy makes this cut, Jason's back is all of a sudden turned, enabling Freddy to cut his leg from behind. There was no time for him to turn around between cuts.
Continuity mistake: When the teens enter the mental institution to get the dream suppressant drug, it shows a security guard drawing his pistol in alert to an intruder banging on a door. The next shot cuts to show the response of two teens hearing a single shot fired, and then cuts back to show the security guard under the door with four big dents from Jason and two bullet holes. The holes are located at the top right hand corner of the door and the other near the door handle.
Continuity mistake: When Lori explains she haven't had much sleep lately, Kia says "Lori, you had to sleep at the police station.". If you look at Kia's purse's straps you can see some of Kia's dress sticking up between the straps. When it cuts the piece of her dress no longer sticks up between the straps.
Continuity mistake: In the end of the movie when Jason comes through the water stabbing Freddy with his own glove, you can see the spikes only coming out of Freddy's chest. When it cuts to Freddy falling to his knees, the whole fist and parts of his armwrist suddenly has gone through his chest.
Continuity mistake: In the scene where Linderman and the deputy is watching Freeburg throwing all the Hypnocil pills down the drain, they are looking through a glass. Then you see Jason coming up from behind lifting his left arm with the machete reflected in the window. When it cuts he lifts his arm again but this time it is his right arm.
Continuity mistake: In the scene where the teen tranquilizes Jason and gets cut in half, we see the two parts of the body in the left side of the hallway. After a few scenes, when the camera gets a close-up of the bodyparts, we see one in the left side of the hallway and the other one in the right side.