- When the security guard explains to the hospital staff what happened in the first two films, he claims that Dr. Loomis shoot Michael six times and then set him on fire. However, across the two films, Michael was actually shot eleven times by Dr. Loomis, and a gas explosion is what set Michael on fire.
- When Dr. Loomis arrives to get gas, he drives to a further pump than his car is parked at when Michael causes the gas station to explode.
- Dr. Loomis parks a 1982/1983 Chevy Malibu (with four head lamps) at the gas station. The vehicle that explodes in the fire is a 1980-1981 Malibu that only has two headlamps and a different grille.
- The burn scars on Dr. Loomis’ face and Michael Myers’ hands change periodically throughout the movie.
- Michael’s full name is Michael Audrey Myers, yet whenever we see his name typed up at various parts in the movie, the middle initial is M rather than A.
- Rachel’s mouth is clearly saying something other than “have some coffee” when she pours the coffee on Kelly.
- As Rachel and Jamie slide down the roof to escape from Michael, they look down and a bike can clearly be seen in Sheriff Meeker’s yard. When they fall and Jamie makes her way over to Rachel moments later, the bicycle is no longer there.
- When Michael surprises Dr. Loomis the elementary school, he is suddenly wearing a mask with blonde hair.
- When Rachel gets ready to hit Michael Myers with the car, she mouths, “die, son of a bitch” but the audio is, “die, you son of a bitch.”
- Leslie L. Rohland’s character is listed as “Leslie” in the end credits rather than Lindsay.
