2 hours 42 mins. This is a long movie. Good, but long. That's the only grudge I have with this. Keep the length aside and this is an amazing movie.
There's no resolve in the end. The movie doesn't tell you who the Zodiac killer is because he was never caught in real life. It just throws facts at your face and shows Jake Gyllenhaal shitting his pants in a basement. I have no clue how I ended up enjoying this fact-filled no-satisfying-conclusion of a movie. And the weird part is: I LOVED the ending! wtf.