Seen the movie once and the book is near and dear to my heart. I thought the movie was an enjoyable experience and an adequate translation but it didn’t quite reach the heights of greatness reached by the source material; it took the characters a little less seriously, and the alterations to the plot weakened the verisimilitude of the original story and the overall “ompf.” The merit of Watchmen comes very much from the addition of all the tiny pieces of information into one perfect whole, and in my eyes those alterations made during the translation marred this equation and this resulted in an imperfect sum. That’s where the ‘ompfh” is lost.

I recognize the necessity of tailoring— a book and a film aren’t the same thing— but Watchmen, as it has often been said, is “the unfilmable graphic novel.” The very alterations required by the translation mar it inherently. Every step away was a step away from perfection.

So TL;DR It was good, but not quite as good as the book— because they changed it, but they had to change it.