Continuity mistake: In the police station, Jessica gives a rubber duck to Stephanie in one shot, but in the next shot it has gone. It returns in the following shot. (00:43:55)
Continuity mistake: When Deborah returns back to the tent, it pans across to show the dead body of Alexis propped up against a tree. In a following shot from the point of view of Phil, who is possessed by Jason, watching the tent from beind some leaves, you can see they body of Alexis has now gone. (00:29:55)
Continuity mistake: The white sweater, tee-shirt etc., that Agent Marcus throws in a heap beside the sink change position from when she runs the bath, to when the lights go out. (00:03:45)
Continuity mistake: Dirt and grass disappears from the back of steven's sweater, just before Jason throws him. (01:20:10)
Continuity mistake: When Jessica stabs Jason, black blood squirts over his hockey mask, but in the next shot it has gone. (01:20:25)
Continuity mistake: After Jessica stabs Jason he throws her off and she falls backwards, but in the next shot she is turned around and flying face forward. (01:20:25)
Continuity mistake: The blood vanishes from the pole which goes through Duke's leg. (01:14:55)
Continuity mistake: When Jessica arrives at the Voorhees house, her neck is clean, but when she enters the room with Duke in it, she has a black handprint on the side of her neck. (01:11:30)
Revealing mistake: At the end of the film when Freddy's arm bursts out of the ground and grabs Jason's hockey mask, you can see none of his skin is burnt, like it should be, and also they metal blades on his glove clearly bend like plastic. (01:23:50)
Revealing mistake: After Steven cuts possessed Randy's throat with a machete, you can see that the machete is completely free of blood. (01:15:55)
Visible crew/equipment: When Pookie shoots at Robert, who is possessed as Jason, in one side shot you can see Pookie is wearing safety goggles. In all the other shots he has nothing around his eyes. (01:09:00)
Continuity mistake: When Steven jumps upwards, and out of his handcuffs, he knocks out the policeman who was walking with him. As the policeman falls to the floor, his hat falls off. However in the next shot the unconscious policeman is lying on the floor with his hat back on his head. (01:05:20)
Continuity mistake: When Vicki is cleaning the bloodstain from the carpet, Jessica enters the room and they talk. Between shots the yellow rubber gloves and the small sponges which sit on the bloodstained carpet change position. (00:41:30)
Continuity mistake: When Josh attacks Diana, Steven tries to save her. We see Steven being taken by the police and his blue jeans are spotless. Yet in the very next scene of Steven talking with Randy at the station, Steven's jeans are now soaked in blood, for no apparent reason. (00:40:35)
Continuity mistake: When Josh is impaled by the poker, he stumbles towards the window and crashes out of it, pulling the white curtains with him so that they drape outside the window. But in the next shot the curtains are pulled back neatly inside the room once again. (00:39:30)
Continuity mistake: When Josh is attacking Steven, after Steven tried to save Diana from Josh, the small table with a lamp, photo frames and other ornaments on it has half it's items knocked off, with a couple of ornaments remaining on it. In the next shot, these ornaments have also gone. In addition, the green rocking chair next to the table, has a decorative cloth sitting on the seat of the chair, but in the next shot the cloth is draped over the back of the rocking chair. (00:38:45)
Revealing mistake: Phil, who is possessed by Jason, puts shaving cream on Josh's moustache. Then, he takes a razor and begins to shave his stubble off, and then his moustache - however, you can quite clearly see that Josh's moustache is not there anyway, and has disappeared between shots. (00:36:00)
Continuity mistake: When Phil, who is possessed by Jason, has Josh tried up inside the Voorhees house, he takes some shaving cream and puts it all over Josh's moustache. However in the next shot there is suddenly much more cream on Josh's moustache/chin. (00:35:45)
Continuity mistake: When Diana walks out of the doors carrying a silver tray, you can see inside the tray and it is completely empty. However in the following shots as she walks across the car park, there is now a white bowl of dog food inside the previously empty tray. (00:32:20)
Continuity mistake: When Alexis is outside by the campfire, she is fiddling about with a blue sleeping bag, which is rolled up in a bundled circle. However in the next shot the sleeping bag is suddenly rolled out flat across the ground, and Alexis now unzips it. (00:26:55)
Answer: Jason is the son of Elias and Pamela Sue Voorhees.
Myridon