Why (and it seems to be whenever there's a bloody moment) does the quality turn really shoddy? For example, take that bit near the end when that woman is getting burnt alive in the village. Whenever the ladder is nearing the flames the quality goes really blurry, sort of looks like a crappy copy.
The first time I saw it I thought that my dad's brand new plasma TV was broke. But I saw it recently on another TV and it was exactly the same.
Because it IS a "crappy" copy. That is, if you're talking about the UK DVD release version. Four minutes of previously censored footage have been inserted into the film at various points, all of it copied from a greatly degraded videotape source. Why this was done instead of utilizing comparably pristine footage taken from the UNEDITED AIP U.S. release is a mystery. The DVD is one of the shoddiest presentations of a quality film ever released.
The film was also made on an extremely low budget, filmed in a 4:3 open matte ratio on the cheapest possible film stock available -- Eastmanstock, which is prone to color fading almost within a couple weeks of being exposed. By comparison, fanboy favorite THE WICKER MAN had a somewhat lavish budget, and international cast of stars, was filmed in 35mm Techniscope with Technicolor, had about 3 months of post-production work done on it to embellish certain special effects like Britt Erkland singing, and was archivally cared for by Warner Bros. for years. CONQUEROR WORM was regarded as a lurid, low-budget exploitation film and treated accordingly, carted around for almost 3 decades as a TV creature feature anomaly, and exists in 3 different forms due to the wishes of 3 different distributors. It is a miracle the film was made at all, and that it still has the power to effect audiences 40 years later should not be overlooked.
Sorry for being late, but Wicker Man '73 wasn't shot on Techniscope or Technicolour -- it was shot in Open Matte format (in Europe/UK, it would be matted to 1.66, and in the US, where I live, it was matted to 1.85) and shot in Eastman Colour. (Kinda how this film was made, wasn't it?) Warner's never did release Wicker Man '73 ever in its life (it was only shown as test releases, until Warner dropped it completely); it was only later in 1978 that it finally got released here in the States --- BY AN INDIE COMPANY. The film was also shot in a low budget as well (The cast were paid nothing: If they were paid, the budget would have been unrealistic, and the film wouldn't have been made). However both this and Wicker Man '73 are favourites of mine.
The mistake people make is in thinking that a Technicolor credit always meant a particular unique process (usually 3-strip). It didn't. The only thing it meant for sure was that the Technicolor company handled the processing and printing.
Long story short, the vast majority of films made after about 1955 which say Technicolor are shot and processed in exactly the same way as they would have been by any other laboratory on a single strip of film made by Eastman, Fuji, Agfa or whoever using exactly the same type of equipment and chemicals.
SOME prints of SOME films processed by Technicolor labs were produced by the older dye transfer process but as this was far more expensive it was not common especially on cheaper films.
Most prints of most films after 1955 which were processed by the Technicolor labs would have been treated no differently than if they had been processed by any other lab in the world.
I'm quite sure the change in quality is on purpose. The director decided to change the focus/definition on the film whenever there are gory parts. It's an effect which makes the scenes stand out more and gives them a sort of frantic/eerie quality.
Its not on purpose, the original BBFC censored scenes were taken from a different uncut source (probably an American laserdisc) and added to a cut UK theatrical film print.That's why the scenes look fuzzy and washed out in comparison to the rest of the film.The best way to currently see the director's cut is via MGM's R1 DVD.