Continuity: When the girl who owned the dog is hit in the bum with a slingshot, she is hit in the right butt cheek, yet she grabs her left butt cheek.

Audio problem: When the band starts to play the guitar solo doesn't match the guitar player's fingers or picking.

Revealing: When Jason slits the guy's throat who is hanging upside down in a tree, look closely and you will see that Jason slits the guy's throat with the dull side of the machete blade.

Revealing: 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.

Continuity: When Scott is dancing with the dog, in the shots from inside the cabin, the collar on his shirt is up. But from the shots outside the cabin looking in, his collar is down.

Continuity: 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.

Continuity: As their car is towed, the guy hangs up the phone and it remains on the hook. When it cuts the phone is hanging off the hook, as they are running from the phone booth.