Visible crew/equipment: When Tommy and his friend first walk into the cemetery they walk right past a stage light at the gate.

Revealing: In the film Tommy runs to his truck after Jason has been brought back to life. Tommy is seen jumping into his truck and the engine rev's before he has even put the key in the ignition.

Continuity: 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.

Revealing: When Tommy goes to the Sheriff's station to warn the cops about Jason, he freaks out and grabs a shotgun. Sheriff Garris throws him to Deputy Rick, who drops the fastfood boxes he was holding. We can see (and hear) that the boxes are empty when they go flying.

Continuity: In the film Cort is making out with Nikki in the motor home and his tank top rolls up and it's above his nipples. In the following shot the shirt is rolled back down again.

Revealing: When the lightning strikes the metal pole in Jason's grave for the second time, a wire is visible attached to the tree where the electrical explosion appears.

Deliberate "mistake": When Jason rams the iron pole through the windshield of his first victim's car, the windshield breaks like normal glass.

Continuity: When Tommy is in the boat at the end, he pours gasoline on each side of the boat. He lights one side and both sides ignite, but how could this be if he didn't pour it all around the boat. Also, when he is fighting with Jason the ring of fire moves away from the boat.

Visible crew/equipment: When one of the female counselors is walking towards the window because she heard a noise you can see the top of the camera shooting the angle from outside above the window sill.

Revealing: When we see a closeup of Jason opening his eyes for the first time he is supposed to be lying in his coffin. One of the maggots falls across his face. If he really was lying down the maggot wouldn't fall like that.