Continuity mistake: Roy has somehow circled back and is standing beside the same tree he was kneeling beside earlier when he broke the branch. The vines on the front of the tree were removed and the branch he broke is just below the camera but the tree itself and the trees in the background are identical. (00:22:58 - 00:24:04)
Visible crew/equipment: During the paintball scene where Jason jumps down from the trees, he chops three people's heads off at once and when those bodies land you can see the crashmats at the bottom of the screen. (00:23:15)
Revealing mistake: During the Paintball game, Jason decapitates 3 players who are standing side by side all in one swing of his machete, unfortunately all 3 people are of completely different height to each other so there is no way he could have decapitated them all at once. Also, even a viewer with the poorest eye sight can see the boxes the 3 dummies are standing on when their heads fly off. (00:23:15)
Continuity mistake: After Jason kills the 3 paintball players, he comes after Roy who panics and shoots Jason in the chest with a paintball. Jason even looks down at the paintball stain before he chases after Roy. Yet in all the later scenes, the paintball stain is gone. (00:23:25)
Plot hole: Katie calls out that the game is over and Stan and Larry protest because no-one has seen Roy. Roy is not on their team so Roy's status doesn't matter to them. He is on the yellow team with Katie, and they are the only ones left so the game is over. Katie's response doesn't make much sense either. It doesn't matter if Roy is still out there or if he shot himself or got lost. Roy is on her team so the game is over. (00:23:50)
Revealing mistake: Some of the shots in the woods are meant to be a burned out part of forest but the trees are just spray painted black. It obvious because in a fire all the tiny branches, vines and leaves on the forest floor would have completely burned. You can also see where the paint stops around the sides of some the trees and branches. (00:24:00)
Continuity mistake: As Jason pulls out the machete for the triple decapitation you can see his sleeve pulled up slightly revealing the Dan Bradley's wrist. It's not Jason's rotted skin seen in the opening. (00:24:18)
Revealing mistake: During the chase scene when Tommy makes the turn towards the cemetery and the police car follows, you can see Colone is not in the passenger seat. The passenger is wearing glasses and has a seatbelt on and Colone has neither. (00:25:12)
Continuity mistake: This is not the same cemetery as the one in the opening scene, this is a real cemetery. The layout is different. There are no hills or staircases. It has different monuments and tombstones which actually have names on them. The quick shot of Jason's grave is just an insert. All the actors also avoid walking over any graves, and they do not take the same care in the opening scene. (00:25:39)
Continuity mistake: Tommy runs by the same graves multiple times. They use shots from different angles to make the chase seem longer. (00:25:57)
Continuity mistake: When Tommy is handcuffed and stood up he has leaves and debris stuck to his shirt but in the next shot of him standing up it's all gone. (00:26:33)
Continuity mistake: The fence post Tommy removed to stab Jason is still in place on the fence. (00:26:44)
Continuity mistake: The liquor bottle has a red and gold label. Later the liquor bottle label is white with gold trim. The change occurred because the caretaker's death was filmed months after the shooting had wrapped. (00:27:14 - 00:30:29)
Continuity mistake: In the second row the second girl from the right has a pink bag and doll in her lap. The next shot both are gone. (00:27:25)
Continuity mistake: When Megan talks to the girls there are multiple girls in this scene who are never seen again in the movie. There are 2 black girls and at least 3 white girls who are never seen again. Also, the main little girl from the later parts of the movie is nowhere to be seen in this shot. (00:27:26)
Continuity mistake: The boy in the blue and gray shirt has a white bag in his hands. The next shot the bag disappears. (00:28:28)
Continuity mistake: Jason has been shown to be right-handed but in this scene he has the machete in his left hand. The dart pouch is barely visible and the machete holster is not. In the shot of his head the axe wound is missing. This is all because the film has been flipped - it's a mirror image of a previous shot of Jason walking. (00:28:43)
Continuity mistake: When the caretaker takes a drink there is still liquor in the bottle when pulls it away from his lips. You can hear it slosh around In the bottle. The next closeup shot shows the bottle is empty before he puts it in his mouth and then pretends to swallow. (00:30:37)
Continuity mistake: Jason's suit is a little dirty but not damaged at all. This is a result of this scene being added months after filming had wrapped. (00:31:16)
Continuity mistake: When Sissy and Paula are in the cabin as the girl screams, Sissy holds her hand up. When it cuts to them running, her arm is suddenly down. (00:32:15)
Chosen answer: He wasn't really angry, more like confused and annoyed at having paint shot at him.