I have to say I didn't really like the Watchmen film. Part of it is probably that I don't like Zac Snyder in general. My main issue was that the film basically seemed like a frame-by-frame animation of the graphic novel, so I didn't feel like it was adding much - if what you want from a film version of a book is for it to visualize and adapt the original text into cinematic language, it felt like it didn't really do that.
I also found the Hobbit films a really cynical exercise for various reasons, although the films stand up reasonably well on their own I suppose
While I was impressed with the attention to detail in the film adaptation, the things they changed make me think Snyder doesn't "get" Watchmen.
I don't mean getting rid of the giant psychic squid. That was a good move.
It might seem like a small thing but when laurie enters Archie for the first time on her own she's looking for a dashlighter for her cigarette and thinks she finds it when she finds a flame icon. Instead It activates the flamethrower. In the movie she just presses the button for no reason.
Later when Laurie and Dan get together for the first time it's supposed to be a tender moment but it's kinda ruined by "halleluja" playing in the foreground
Later when Rorschach tells the prison psychiatrist of the case of the child kidnapper that ended with the child dead and fed to the dogs.
In the movie Rohrshach takes a cleaver and splits the kidnappers head in half. Blood spurting everywhere etc.
In the book however he takes his anger out on the dogs and his punishment for the lowlife is much crueler.
He cuffs him to a pipe in his house sprays the inside with kerosine, gives him a hacksaw to saw of his arm, sets the house on fire and stands outside for an hour watching the blaze.
Why would you change such a character defining scene? Presumably spurting blood was cooler?