All the real work is done in the rehearsal period.
At the end of the first Halloween, when I shot 6 bullets into Michael Myers, John Carpenter said, Let's get a shot of you looking out of the window and seeing no one lying there.
John and I had a few meetings about what direction the sequel should take. I made some real insane suggestions. True to what you'd expect, he ignored them all and just picked up Halloween II where the original left off.
The idea of dying and coming back is what makes the Halloween films work.
I was offered a choice of a flat salary up front or a percentage of the film's future earnings. I took the up front money. Nobody could have figured what Halloween would ultimately become.