Most of the cast and crew disowned this movie. On the Halloween: 25 Years of Terror (2006) DVD, they stated that the studio, producers, and director interfered and argued to the point of ridiculousness which resulted in a very poorly directed and edited film.
The producers of the movie wanted Brian Andrews to reprise his role as Tommy Doyle from the original Halloween. However, Andrews did not have an agent, so they could not get in contact with him. He regrets missing the opportunity.
Daniel Farrands' original script was far more moody and psychological than the final draft. After reading the script, one of the execs at Dimension films could not sleep that night and therefore called Farrands immediately and told him that they wanted go forward with it. Donald Pleasence himself supported the original script and immediately signed on to make the film only to find out that the script was being rewritten.
For years after the theatrical release of this film, the only way to watch the Producer's Cut was by bootleg copies which had poor video and audio quality rendering it nearly unwatchable, the footage managed to survive being destroyed by being released illegally. On September 23rd, 2014, Shout Factory released the original Producer's Cut on Blu Ray, with a restored picture from the original negative which is available in the Halloween Complete Collection for the first time. It was finally given an individual release by Miramax films on September 2015 though without the bonus features from the collection.
As a result of Donald Pleasence's death, as well as creative differences between Joe Chappelle and the producer, and an allegedly bad test screening of the original work (the famous producer's cut) re-shoots were done as well as lots of editing, to the anger of most of the cast and crew. Many vowed never to make another Halloween movie again after all the changes.
The original title of the movie was "Halloween 666: The Origin of Michael Myers". There are even existing ad prints and early trailers with that title. Later, it became "Halloween 6" and finally "Halloween: The Curse of Michael Myers".
In early 1995, after filming and editing was completed, Halloween 6 was given a test screening which, as described by actress Marianne Hagan, "consisted primarily of 14-year-old boys." During the Q&A afterward, one of them expressed great displeasure at the ending of the film, which entailed a Celtic ritual and the passing on of the Curse of Thorn to the Dr. Loomis character. This led to reshoots to craft a new ending, but there was a big problem: Donald Pleasence could not be present for them on account of having died in February. Not only was a new ending shot anyway, but over twenty minutes of other footage was changed as well, leaving gaping plot holes that rendered the film nearly incomprehensible.
Daniel Farrands has said his initial intent for Halloween 6 was to "bridge the later films (4-5) in the series to the earlier films (1-2) while at the same time taking the story into new territory so that the series could expand for future instalments."
The original conception of the "Thorn" cult apparently was much more in the vein of Roman Polanski's vision of the Satanists in Rosemary's Baby (1968), more mundane and real-life, as opposed to what Daniel Farrands has called "the Temple of Doom version" in the final film, with underground lairs, altars, and robes and hoods.
Daniel Farrands was a longtime fan of the series. He had compiled a notebook filled with research on the series, including a timeline, bios for every character, a "family tree" of the Myers and Strode families, and research on the runic symbol of Thorn that had appeared in Halloween 5 (1989).
During production of Halloween 6, distributor Dimension Films was having budget issues with its other upcoming horror sequel, Hellraiser: Bloodline (1996), and reportedly slashed $1 million dollars from Halloween 6's budget as a result.
When Michael was chasing Tommy, Kara, Danny and baby Stephen down the hallway, Michael was played by A. Michael Lerner. The Smith's Grove Doctor running from Michael also was A. Michael Lerner's real life father.
The film begins with a flashback to the ending of Halloween 5 (1989) to explain that Jamie was kidnapped after the police station massacre by the Man In Black and held by the Thorn Occult. However, at the end of the last film, it is shown that the Man In Black has already fled with Michael Meyers and Jamie had arrived at the station after they had left and was not taken by the Man In Black.
Producer Paul Freeman and director Joe Chappelle reportedly rewrote the ending on-set, even from shot to shot as production deadlines loomed large. Freeman also sent the crew home when crucial scenes needed to be shot; deleting scripted scenes indiscriminately, rewrote dialogue and action sequences; and took it upon himself to direct second-unit shots as well supervise the post-production phase of the original cut and made a series of blunders that resulted in Miramax taking control of the film, ordering reshoots.
According to Marianne Hagan, she almost did not receive the leading role of Kara Strode - Miramax Films purportedly did not like her physical appearance, deeming her "too thin", and her chin "too pointy".
In January 1995, Entertainment Tonight aired a segment on the making of this film - where it was reportedly called Halloween 6: Michael's Back. The film was never released in any territory with that name.
Daniel Farrands stated in an interview that Joe Chappelle used little to no ideas from his script. He had completely re-written the entire third act which included a completely (confusing) different ending. Daniel's original script dealt more with the cult and rune of Thorn.
The writer and filmmakers' intentions with the script were to ultimately unveil what had kept Michael Myers alive, and his reasons for killing. They decided upon using the "Curse of Thorn" angle, which is the concept that Myers had been under the influence of an ancient Celtic curse that drove him to murder all family members in his bloodline; once this task was completed, the curse would be passed onto another young child.
In the P Cut of this film all of the background music is from earlier Halloween films. Also the narrative in the beginning of the film is done by Donald Pleasance, unlike the T cut which was narrated by Paul Rudd.
Many of the crew have gone on the record to state that director Joe Chappelle told them from the outset that he didn't like the Halloween films, and was only involved in this project because it got him a three-picture deal with Miramax. His next two films after this were both Miramax releases.
When Jamie called for help she originally said "They are after me and my baby" . The line was truncated but provides a viable explanation as to how Tommy knew about the existence of a baby. When Tommy discovers the trail of blood at the bus station he immediately makes the connection and realizes whose child is the baby.
The 2006 movie "Unrest" was filmed in the same location as the P-Cut. (specifically the interiors of Smith's Grove at the end of the film, with the long white hallways where Tommy and Loomis speak briefly about Thorn, and again where Tommy and Kara run from The Shape as the alarms are going off).
The screenplay that famed Horror scribe Scott Spiegel handed in dealt with a now homeless Michael Myers, trying to find his way back to Haddonfield so he could gain revenge on those who wronged him. Reportedly when series producer Moustapha Akkad read this draft, he threw it across the room into a waste bin.
The trivia items below may give away important plot points.
The MPAA initially rated the film NC-17, however the film only had to trim a few minutes of its gore footage from Jamie's death and John's death by a few seconds, and the final scene had to be shot with a strobe light effect to get an R rating. This makes the film one of the few modern slasher films to require a minor cutting to be rated R.
The exchange between Dr Loomis and Dr Wynn after the revelation of the Man in Black was extended in the script. Wynn's dialogue at his office points out that Michael's rampages of terror were not coincidental. The constellation representing the Thorn demon appeared in 1978 , 1988 , 1989 and 1995 accounting for the dates of the massacres. Wynn always monitored Myers and even taunts Loomis by thanking him sarcastically since Loomis always made sure to capture Michael and bring him back. Wynn also blatantly reveals that it was him who taught Michael how to drive a car.
Danny's subplot is left unresolved. He was hearing voices and it is implied that he was also targeted by the Thorn Cult. In the early versions of the script this storyline would actually be concluded with Danny stabbing Kara to death in precisely the same bathroom that Jamie took refuge. The studio deemed this ending too dark and the script was rewritten. The final script has Dr Wynn escaping at the end and kidnapping Danny planning to turn him. This was meant to set up a seventh Halloween film but this was scrapped in favor of providing closure. Both the Theatrical and the Producer's Cut have Tommy, Kara and Danny escaping with the baby. However there is still a hint of the abandoned ending since Dr Wynn is never explicitly shown dying during the climactic massacre. The Producer's Cut ends with Dr Wynn clearly surviving.
An early version of Jamie's death has her stabbed with a knife and not with farm equipment. The Producer's Cut has extra scenes with Jamie at the hospital. The doctors remove the knife from her body. Later Jamie lies unconscious on the hospital bed. She has flashbacks of her impregnation during a ritual conducted by Man in Black and his associates. It is strongly implied that Michael Myers impregnated her to pass on the curse. As Jamie is dreaming the Man in Black walks inside the room and remarks that her work is done. He eventually shoots her to death.