When Michael tears his hand off the knife stuck in the table, the knife handle is clearly missing. Moments after, as Frank gets into the house, there's a shot of the kitchen with Laurie and Allyson standing, and Michael lying on the table. The knife has a handle again.
In the opening credits, the name of Kyle Richards's character is spelled as "Lindsay" instead of "Lindsey".
As Corey is sitting on the couch babysitting, his shoes change to a gray pair and then back to stripes.
When Michael Myers attacks Nurse Deb, stabbing her through the painting, the wires holding her up are visible.
This movie takes place in Haddonfield, Illinois. In one scene, there is Publix brand milk in the refrigerator. There are no Publix stores in Illinois.
One of the teen bullies refers to their convertible as a LeBaron. The vehicle is actually a Dodge 600.