Continuity: Near the film's end, Myers crushes Dr. Loomis' skull with blood protruding from several parts of his face. In the following shot of him being dragged into the house dead, his face and head are perfectly fine.

Continuity: When Michael Myers busts into the bathroom stall occupied by the truck driver, the plastic magazine racks on the opposite side of the stall are smashed and broken. When Myers leaves the stall, the magazine racks are still intact.

Other: Background mistake. When Laurie, Annie, and Lynda are walking home from school on Oct 31st, you see the "fall" Leaves on the ground, however the surrounding trees are as green as can be.