Watchmen has been a landmark comic book series since the 1980s, but it took quite a while for the series to be adapted into other mediums. The most notable of this was Zack Snyder's live-action Watchmen, which reverently replicated exact images from the graphic novel. Now, the story is being retold yet again as an animated movie, though that might not be the best way to go about it.
Source:https://www.cbr.com/watchmen-animated-series-movie/