Directed by: Rick Rosenthal
Starring: Jamie Lee Curtis, Donald Pleasence, Charles Cyphers, Jeffrey Kramer, Pamela Susan Shoop
Continuity mistake: When the guard is checking the warehouse at the hospital he holds the flashlight differently between shots.
Other mistake: At the hospital Laurie could not know that Myers was after her in there.
Other mistake: After Myers stabs the blonde nurse the scalpel is clean of blood.
Other mistake: Myers gets shot 6 times in the chest and body but has no blood or bullet holes.
Mrs. Alves: Time's up, Jimmy. Let's go.
Jimmy: OK. OK.
Mrs. Alves: No you won't. Visiting hours are definitely over.
Trivia: John Carpenter originally wasn't keen to do a direct sequel to the first film. But he eventually relented and co-wrote this follow-up.
Question: Why aren't there any other patients/staff?
Answer: Apparently there were quite a few patients at HMH. If you remember the scene where Karen was putting pills into individual cups just before the room buzzer goes off, in which she finds Bud under the sheet, there are many of those cups. Also we know for certain there was a patient named Ms. Carr who was supposed to receive attention at 9:30 the next morning, told to Karen by Ms. Alves, while Michael was standing in the rear of the nursery area watching them. And of course there were all the newborn babies, leading me to believe there were a few new mothers in the hospital as well.
This could possibly be the "best" answer to a question that I've ever read. But seriously, I had wondered the same question 35+ years ago and this reply made me think of things I hadn't thought about. That empty hospital was actually quite crowded.
Answer: One could argue that Haddonfield is a small town, and perhaps there just aren't that many doctors, nor that many patients in the hospital at any given time. It really just depends. Also, I've had to go to the ER a number of times in my life. Most of the time, it's busy, but there has been a few times where it has been pretty much completely dead and empty, not too dissimilar from what you see in this movie. So it could possibly just be a slow night.
Answer: I have read that, in early drafts of the script, the hospital was a health clinic, not a standard hospital. This would possibly explain why there are only a small number of patients, though it doesn't explain why there is a maternity ward, or why the mother brings her son there for emergency treatment.