Unfortunately if a big Hollywood (or other) producer got hold of the rights, I'm afraid the film would go the same way as the intended and non-existant films of Dr. Who, Red Dwarf, etc. In other words, lots of speculation, rumour, misinformation, good intentions, lack of decent funding etc. all of which resulting in no progress and a lot of frustration for the fans.
(Unless Tim Burton was to direct Night Watch with Johnny Depp in the role of Carcer, of course.
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