I recently read the comic, Snyder did a pretty great job adapting the book in some aspects, but kinda missed the mark on some. I guess the unnecessary gore/violence in the film kinda bothered me. (Rorschach's first kill was nowhere near that brutal. And the guy who got his hands cut off in prison, nowhere near that violent in the comic.)
I would have been okay with the original "Alien Squid" ending over having Dr. Manhattan's energy destroying NYC. It just made sense. How could you bring all nations together while they're fighting each other in wars? Huge alien squid! Lol. Having all nations halt the wars and have world peace for a minute was a nice ending. Then add the "Nothing ever ends" line...
Snyder kinda glamorizes the characters a bit much. Most of these characters are heavily flawed, with some having very few redeeming qualities. I get it, it's a film, so changes are expected. Rorschach is definitely the most fleshed out character in the comic, and I feel they did a good job with him in the movies too.
A lot of positives though. The visuals in this are so amazing. Great casting choice in every role too. And it's still a good adaptation for the most part, just wish some things were slightly different. I did not enjoy the Watchmen tv series. I felt that was a huge letdown.
I'm curious how that David Hayter Watchmen film would have turned out. I believe he was even keeping in touch with Alan Moore and getting advice from him. Kinda wild to think about that!