The nuclear age and situation between USA and Soviet Union is the main timeline. You know either side hits the red button, the entire world goes down or to hell. At the end, someone else did hit, but motion behinds that is really freaking me out. I totally can't agree that, though Dr. Manhattan agrees and result seems to peace. It's overwhelmingly sad, I was speechless at that moment. What if that really happened to us? to this real world?
Roschach is my favorite character in this movie. Chasing the truth so hard, but his ending is tragic. I still can't accept that. Dr. Manhattan is like an emotionless person or robot? He seems to be perfect with logic and beauty of mathematics, but if it involves human, that would be a disaster, sort of.
It's a good movie but a rated R++ one not really have such rating. But it might not be a good time to watch it when you already feel gloom.