Maggot Mistake
In the coffin, a maggot falls straight "down" off of Jason's face even though he is supposedly lying down.
Actors Mistake
After Cort and Paula bring their groceries from the truck you can see their reflection in the side panel of the truck as they walk past the camera and then sit down and wait for the scene to end.
License Plate?
During the police chase scene officer Pappas reports Megan's license plate number to the sheriff even though she is driving backwards and there is no plate on the front.
Gasoline Mistake
When Tommy pours gasoline onto the lake, he splashes it in two lines along the sides of his boat, yet when he throws a match onto the gasoline, it manages to ignite in a nice circle around him.
Blue or Brown Eyes?
In the beginning when they have the close up of Jason's eye, it is brown, but at the end when Megan cuts his neck with the propeller, his eye is blue, and then it is brown again for the last shot of Jason.
