Well considering watchmen is like my favorite thing ever, you could see my over zealousness shining a bit and I probably woulda defecated all over a half way decent adaptation. Like I said Coens or Kubrick (RIP) woulda made some interesting ass adaptations.
The problem with watchmen is that it's far too long and complicated too be filmed, it's probably one of the most unfilmable things ever (along with like Infinite Jest) since it utilized comics only techniques and hell even on a subtextual it only really works in comics. The goddamn thing pretty much works as an allegory for the entirtey of comics up to that time with the minute men being the goofy silver age and tackily dressed heroes, whereas the crimebusters moved on to being dour vigilantes reminiscnet of the Dark age of Comics. Than there's mindfuck ending that is also a homage to the silliness of silver age comics, and all that buildup and details only worked cause the comics expounded on the details whereas in the movie it felt like an asspull & half baked.
Than there's the fact that most characters became archetypes, Rorschach's insanity is almost played down using the hacksaw instead of burning the dude makes him les disturbing, & I'm in the minority but I felt Jackie Earl Haley was too wooden as Rorschach and just did his best Christian Bale impression. He sounded like a barking dog rather than some cold blooded, monotone psychopath.
Making Nite Owl less inherently silly and more badass ruins the whole point of the character.
The Comedian is nowhere near as morally complex in the film as he was in the comic.
& My God is the villain (don't wanna spoil) horrendous and what is supposed to be one of the most complex characters in the work and one of the best villains reduced to a pithy James Bond Villain.
There's all those nuances too like not really taking the time to deconstruct the superheroes and showing how impractical the costumes were, the excerpts (Hollis Mason's which gave great insight into the minutemen and added tremendous world-building), the insanely complex yet masterfully added pirate comic, and just everything felt too condensed and rather than making it as starkly and brutally realistic as possible Snyder removed the moral quandaries in it and turned it into a FUCK YEAH film. (Having the comedian fight back was stupid as hell when he was visibly broken when he visited moloch). Etc, etc, etc. It woulda honestly benefitted most as some mini series ala true detective but what's done is done.