Regarding LOTR
I remember I used to frequent the IMDB message boards. The LOTR boards were decent. Lots of Jacksonittes would go crazy if you pointed out any flaws in the films.
Since then I’ve noticed online there are a lot of purists who claim Jackson got it wrong on so many levels, regarding themes, characters and missing out integral parts of the stories.
Personally I think he did a fantastic job, I hear some complaints and take them on board. But all in all I think he delivered.