Continuity mistake: On the deck, after the girl flashes, the way she holds her top to cover her cleavage changes between shots. (00:02:50)
Continuity mistake: When the girl goes skinny-dipping you see her leaving her purse and clothes on the pier. When it cuts they have suddenly disappeared. (00:03:00)
Continuity mistake: In the opening sequence, when Heather (Skinny-Dipping Girl) runs down the pier, the first overhead lamp sways violently back and forth. However, in the next shot a second later the lamp is dead still. (00:03:00)
Continuity mistake: When the skinny-dipping girl reaches the ladder attached to the pier, you see her grab it with her left hand. When it cuts she holds on to it with her right hand. (00:03:25)
Continuity mistake: When Lori says "Why don't you start in the kitchen and get us some beers" Kia sits next to her with her hand to her mouth eating popcorn. The hand keeps changing from being down and being by her mouth between the shots. (00:10:25)
Continuity mistake: Before Jason kills Trey, we see Trey getting a can of beer. Beside that beer there is another can, which change position in the next shot. (00:12:30)
Continuity mistake: When Freddy's shadow impales Blake, you see Blake running off the street. When it cuts you see Blake running off the street again in the background. (00:18:55)
Continuity mistake: When Mark tells Kurt he never does checkers, we see Will holding his hand down on the table. When it cuts he has his hand up by his chin. (00:21:10)
Continuity mistake: After they have sedated Mark the institution guards throw him on the bed, and we see him landing on the pillow. Two shots later he is off the pillow. (00:22:30)
Continuity mistake: When the guards leave after sedating Mark, Will gets up in his bed and we see his pillow's askew. When it cuts his pillow is straight. (00:22:35)
Continuity mistake: When Lori, Kia and Gibb meet and they hug each other, we see Kia putting her arm on Gibb's shoulder. When it cuts Lori's hand is on Gibb's shoulder and Kia's hand is on Gibb's back. (00:24:40)
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. (00:25:10)
Continuity mistake: When Freeburg and Shack are handing out the flyer's for the party, we see Kia cross her arms as Gibb ask Lori if she wants to go. When it cuts Kia has her arms down. (00:26:05)
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. (00:26:15)
Continuity mistake: When Mark turns up at school telling about Freddy to Lori, as he says "Then he came back" we see Lori pulling her hair back with her hand without lowering her hand. When it cuts, her hand is suddenly down. (00:27:05)
Continuity mistake: When Mark says "The parents burned him alive" you see Lori lifting her hand to her head. When it cuts her hand is gone. (00:27:05)
Continuity mistake: When Mark is telling about Freddy to Lori we see her holding her ears, then as Will appear, she takes her hands off her ears and lower her hands. When it cuts back to her she is still holding her ears, then she lower her hands again. (00:27:20)
Continuity mistake: At school when Lori approaches Will, she puts her hand on his chin. Will then places his hand on Lori's hand and says "I thought you might be in trouble," while their hands still are on his chin. When it cuts, their hands are suddenly down. (00:27:30)
Continuity mistake: When Kia is flicking through a magazine, the page she's on changes from closeups to wideshots. You can tell by the pictures and text. (00:28:15)
Continuity mistake: Out at the party when Kia comes to Will and Lori and says, "Let's go shake our ass on the dance floor," you see Linderman standing a few feet away from Will. When it cuts Linderman is suddenly close to Will handing him a beer. (00:35:10)
Chosen answer: Jason survived due to his unique healing abilities, at the end of the original "Friday the 13th" he is shown coming out of the lake. He is deformed with some mental handicap.
MasterOfAll