Plot hole: In the first scene Alice hears on the radio that three teenagers had been murdered in Haddonfield just down the street from where they live. Yet a few scenes later, the sheriff finds out from his deputy that 3 bodies have been found. Wouldn't the police department know that before it made its way onto the radio news?
Suggested correction: When Alice is on the phone, she tells her friend she can hear the sirens so the police knew about the bodies. As for the sheriff, he'd been busy with Loomis all night. He might have heard about the bodies in the house but figured the other policemen could handle it and that way he could continue helping Loomis. The main reason the deputy came to talk to him, however, was to tell him that his daughter was one of the victims found.
Halloween II was a troubled production, and the scene with Alice was added during re-shoots. Note that the previous scene with Mrs. Elrod also includes a news report about the discovery of the bodies. I've seen no concrete evidence of this, but I've wondered if the scene with Mrs. Elrod was shifted closer to the start of the film, and was originally meant to take place after the scene with the sheriff.
Good theory, but the deputy runs up to the sheriff and informs him for the first time of all three bodies.
Stupidity: When Dr Loomis and Sheriff Bracket are chasing who they think to be Michael Myers, you can tell that it isn't him. Michael Myers is supposed to be 6'2 - Ben Tramer is maybe 5'4. If Michael was shot 6 times there would be blood on his overalls. And the mask that the kid is wearing has blonde hair, whereas the mask Michael wears is brown.
Suggested correction: Remember that Loomis has only seen Michael Myers in his mask once, for a few seconds, in darkness. Loomis' reaction is still pretty hysterical and arguably stupid, but not necessarily for that reason.
Suggested correction: Michael in the original was 5'10", and in Halloween II the actor playing him was 5'9." Ben Tramer was a high schooler and could have easily been 5'10." Loomis was also extremely paranoid and almost hysterical at finding Michael, and could have not noticed the hair or non-bloody coveralls in his frantic search for Michael.
Factual error: At the end when Loomis lights the lighter, the room explodes and is engulfed in flames. Loomis would've burned to death quickly yet shows up in part 4 with burns on his face and arm.
Suggested correction: First, surviving an explosion is unlikely, but not impossible - there are plenty of real-life stories of people surviving fiery blasts. Second, I would argue that it definitely falls firmly under suspension of disbelief, and therefore I don't believe it's a valid mistake. And third, even if it was a valid mistake, this should be a mistake under the "Halloween 4" page, not the "Halloween 2" page.
Other mistake: After the two doctors and the sheriff pull up in the parking lot and then enter the hospital, Michael suddenly appears to Laurie, and she runs from him across the lot toward the same entrance, and suddenly the doors are locked. There is no way this would be, as the doctors and the sheriff would have had to stop and unlock the entrance before entering themselves, which they did not do.
Suggested correction: The door was already open and then they closed it behind them.
