Chewtobacca said:
Andrea, could you post some comparisons of the LD and the 35th Anniversary BD? The LD screenshot posted above looks similar but not the same, and I'm not convinced.
The colours are definitely stronger in the LD timing. But colours and levels were often pumped up for home video releases (hence the overly bright sky). For what it's worth, Dean Cundey had this to say about past home video releases of Halloween and the 35th Anniversary BD:
"Dean Cundey: I was approached actually; John had looked at this new version and thought it looked really good, but suggested that I go in to oversee some final work on it so that fans would finally have the version they deserve. See, a lot of the previous editions were made from a print or a previous digital version and the people working on those versions were just doing what they thought was right. When you have a Xerox of a Xerox of a Xerox though, that just doesn’t translate; things get skewed.
So I was very impressed by the fact that, for this release, they used the original camera material because they wanted to make this the definitive version. For me, it’s the most accurate portrayal of how John and I wanted Halloween to be seen. Most fans have never seen Halloween the right way either between all the TV, VHS and DVD versions over the years so this Blu-ray is really something special."
Source: http://dailydead.com/exclusive-dean-cundey-reflects-halloween-career-talks-new-transfer/
I only really mention this for the sake of clarity. As has already been pointed out, this project isn't about restoring the original theatrical look, it's about recreating the look of the 1999 DVD which some people prefer.