I Think One Of The Best Is 'Road To Perdition(2002)'
Lots of good choices but I got to go with Watchmen. I never understood why so many found fault with it as they did for being like the book.
Perhaps an odd choice, but the animated adaptation of Batman : Year One is very, very good and very faithful to the original (a classic Batman graphic novel from the eighties by Frank Miller). I found it on Netflix but it is available on DVD and may be on other streaming services as well.
Ghost world is my personal favorite. Snowpiercer and Hellboy too, of course!
Sin City or V for Vendetta