Corrected entry: At the very beginning of Halloween 4 when Michael is on the stretcher, several times we see his arm and hand and it appears completely normal. This seems near impossible (even after 10 years, of which no time and/or any surgeries could ever repair) given that Michael was not only burned but completely incinerated in fire at the end of Halloween 2.
Corrected entry: At the beginning of the movie when the orderly is escorting the two doctors up to take Michael away, he talks to them about the happenings of ten years earlier, and tells them that Michael's doctor (Loomis) even shot him 6 times. That really is inaccurate, considering at the end of Halloween 2 right after Michael walks right through the glass doors at the hospital, Loomis fires off another 5 rounds at Michael, hitting him at least 4 more times.
Corrected entry: At the very end of the film when Meeker and the 4-5 other state troopers are gunning down Michael, it is very clear that half the shots or more fired by the troopers aren't even hitting Michael, in fact they are WAY OFF. Now we must take into consideration that this is a movie, plus, shots will miss when that many are fired, but in reality, Michael wasn't that far away, and real state troopers are trained to have near pin-point accuracy for situations like this, and therefor should have nailed about 98% of their shots.
Corrected entry: During the scene when Loomis and the others arrive at the Sheriff's home, when Loomis opens the car door, you can see the reflection of a stepladder in the car window, obviously used by the film crew.
Corrected entry: Myers got a coat hanger completely rammed into his left eye in the first movie and then shot in both eyes in the second movie, how is he able to see in this movie? He was blown up after that and his face burned horribly, he can't just grow new eyes in a burned skull while in a "10 year" coma. The doctors had no reason to implant eyes, even if they could do it back then, how can he see anything?
Corrected entry: When Dr. Loomis and Sheriff Meeker are scared by the Halloween pranksters with Myers masks on, as soon as they pull out and Meeker starts talking on the radio, there is a car parked behind them. Then the camera pulls out and shows Michael Myers standing behind them, notice the car on the left is gone.
Corrected entry: Dr. Loomis told the sheriff that he has seen 6 bodies on his way to Haddonfield. In actuality, there were only 5. The ambulance had 4 people INCLUDING Michael, so only 3 bodies there. In the gas station, there are only two. So where is the 6th body?