Halloween (film series)

•   Michael Myers' house is completely different than the other films.
•   It is reported that there was a lot of tension on-set between the cast & crew and director Dominique Othenin-Girard.
•   Actress Danielle Harris was stalked after the releases of Halloween 4 & Halloween 5.
•   At one point Dominique Othenin-Girard was in talks to return for Halloween 6.
•   The picture of Jamie that was broken before Rachel got killed can also be seen in the movie, Don't Tell Mom The Babysitter's Dead, another film Danielle Harris starred in.

Pop culture references
•   Horror author Dennis Etchison makes a reference to there being a Halloween 5, a couple of years before the actual movie is conceived, in his 1986 novel Darkside. The lead character in the book composes film scores, seemingly for mostly cheap horror flicks, and Halloween 5 is a project in his near future. This was before Michael Myers was confirmed to return to the series. Etchison also wrote the tie-in novels for Halloween 2 and 3.
•   The official website for the franchise, www.halloweenmovies.com, features a map of Haddonfield which indicates that the hermit seen in the prologue may be another living relative of Michael Myers. His home was located on the outskirts of town along the Lost River.