Overall, it is a movie that worth recommending

Rating: 7/10 (15 November 2015)

Before I watched this movie, I never knew David Fincher has this movie. It might not be that famous so people rarely mention this.
So before I actually watched it, I did some research. - This movie is based on a book. - Zodiac is an astronomical term describing sun and moon moving paths. - Cast. — Jake Gyllenhaal is good at playing some guy who is really obsessed in something or could be really concentrated on something, like detective in Prisoners (2013), reporter in Nightcrawler (2014). — Robert Downey Jr, well we all know, he is good at play iron man, and iron man-ish characters, meaning that his style is some talented guy, enjoying luxurious life and at the same time doesn't care about details. — And Mark Raffulo, the professor in The Avengers (2012) and Avengers: Age of Ultron (2015), detective in Now You See Me (2013), and some character in The Normal Heart (2014 TV movie). In my memory, his character was always pursuing something and exhausted and always not the one who won the most. I would say, his performance is really wonderful, especially in how to bring audience into the way he is thinking. - James Vandebilt is the writer for this movie, taking care of screenplay. It's the first time I pay attention to writers. So really no comments..
So as the movie begins, I was thinking, Fincher is really good at attracting people's attention, and he's really good at Thriller genre movies. There's a scene at the beginning, two young kids are shot and that suddenly gets my into thinking. What is happening? Why was that? What is it about? Questions like these would strike my mind make me focus on this murder case. But as time goes by, I feel like the movie was too long and my attention slipped away. Since I cannot really focus on the mysteries Fincher was trying to make. And thus at the end I felt it was not that good.
Then I did the research again, and found out that this is the real murder case happened in history. And someone said this is so good cause it makes everything so real and while we are watching it we will always keep thinking about the real case. Well I can only say it depends on background. Since I'm quite not familiar with that, I didn't really pay attention to this.
So in summary, I wanna list all elements in Thriller Movies. - Stories. Really good stories! It is always combined with Crime and Mystery. And of course Drama. Since movie is about telling a story (not only about the story itself), it is also important to keep an eye on rhythm. — Usually there's like puzzles or some patterns that make people obsessed. Since it has this really requirement. The writer or the director should somehow make it more dramatic. In fictional ones, it's okay that they create wonderful but unreal plots. But in factual ones, they need to pay more attention to how they handler facts and drama. — And good characters, maybe detective, maybe the bad guy, how has this really special personality that is so attractive. Or even psycho! — Well I'm kind of confused about the difference between Thriller and Mystery.
Overall, it is a movie that worth recommending.