Audio problem: In the second shot of the band playing, the band members are singing into their microphones, but no voices are heard. (00:49:40)
Continuity mistake: In the film Ted is at the bar with Paul and Ginny and Ted is flirting with the waitress behind the bar.The waitress has her wash rag slung over her right shoulder. The scene then cuts to a frontal shot of her and now the dish rag is now slung over her left shoulder. (00:52:10)
Continuity mistake: When Mark is on the porch, the camera is Jason's point of view and Jason is sneaking up behind Mark. However, then the camera switches to Mark's face and there is no one behind him. (00:58:05)
Continuity mistake: When Vicky goes to her cabin to change, the window goes from having no curtains to having curtains. (00:58:05)
Revealing mistake: Just after the scene where Mark is killed, there's a shot of Jason's feet as he opens a screen door and walks across a dusty hardwood floor. As the dolly pulls backward across the floor, you can see the camera's roller marks in the dust. (00:59:10)
Continuity mistake: When Jason takes the spear, he tosses the mask down, on the fifth step up. Later, when Vicky goes upstairs, the mask is on the sixth step up. (00:59:25 - 01:01:50)
Continuity mistake: When Paul and Ginny leave the bar, there is a faulty, unlit small headlight on the front left of the car. When they get back to camp the light is fixed and working. (01:01:00)
Continuity mistake: When Jason enters the cabin you can see an umbrella. Yet when Vicky comes in, she's using that same umbrella. (01:01:35 - 01:03:50)
Continuity mistake: When Jason surprises Vicky in the bedroom death scene. Jason pops out of the bed and his bag that he wears on his head is tied up. Then when they cut to Jason lowering his butcher knife, his head bag that he wears is un-tied. (01:02:20)
Revealing mistake: When Jason slices Ginny's leg, not only can you see that a piece of her jeans has been pre-cut and simply just falls off revealing her flesh wound, but you can also see the outline of the tube pumping blood under her jeans. (01:02:20)
Continuity mistake: When the girl runs to the car to escape Jason, the wipers are in a position different from when the car had been turned off. (01:03:20 - 01:07:25)
Visible crew/equipment: When Ginny and Paul walk down the stairs after they found the bed drenched in blood, Paul walks by the camera and you can see the camera's shadow on his chest. You can tell it's the camera's shadow, because when it cuts Ginny walks the same way and no shadow falls on her chest. (01:04:35)
Revealing mistake: When Ginny has run out to her VW Bug and is attempting to start it, Jason is supposed to be back in the house just on his way out to get her. But if you look at Ginny sitting in the car, in the lefthand corner of the windshield you can see a reflection of the top of Jason's hood. He was there all the time, crouched down beside the fender just waiting for his cue to pop up. (01:07:45)
Continuity mistake: When Ginny is in the VW, she knocks Jason over with the car door. After, Jason gets up twice. (01:08:15)
Continuity mistake: When Jason enters Ginny's cabin, all that is shown are his feet. After running through rain and mud, he leaves no tracks whatsoever, and his shoes are spotless. (01:10:20)
Visible crew/equipment: When Jason is in Ginny's cabin, you can see the mike wire's shadow on the floor when he starts walking towards the cots. (01:10:30)
Revealing mistake: When Jason is on top of Ginny's car, she reacts to the pitchfork through the roof a second too early. (01:10:50)
Suggested correction: She had just seen Jason through the window before he disappeared. Then the pitchfork comes the roof. Just before she screams, you can hear the pitchfork tearing through the fabric of the roof. That's what's she's reacting to.
Also, when you see the car and Jason is reaching in through the hole in the roof from the passenger side, it's pretty obvious she would have seen him before he stuck the pitchfork through. That could be another reason she react before we see the pitchfork.
Revealing mistake: Notice when Jenny pees it's shown just pouring out. But she's lying flat and her jeans would obviously absorb most of it. But it just pours out like she's standing up with no jeans on. (01:14:30)
Revealing mistake: At the end of the film when Ginny and Paul are fighting Jason, his machete hits the shrine where his mother's head is displayed and where Terri's body is strewn. When the machete hits, Terri flinches, even though she is dead. (01:16:00)
Continuity mistake: As Ginny hits Jason in the shoulder with the machete, in the first shot it catches part of his sack and is embedded diagonally. In the next shot, the blade is clear of the sack and the machete is now perfectly horizontal. (01:16:55)
