Not the best but a good one.

Rating: 7/10 (16 February 2013)

Zero dark thirty is based on capturing Osama Bin laden after the events of 9/11.The movie starts strong and than falls apart, the movie also describes the investigation of a woman CIA agent Maya (Jessica Chastain), who is just want to find out the location of Osama on any cost. She finds Osama almost a decade.
The director Kathryn Bigelow makes another good movie but not that good enough as we comparing to The Hurt Locker (2008), it was an excellent movie also won an Oscar award. Besides, zero dark thirty is a good movie to watch but not a brilliant kind of movie.
Reason's to watch this movie
1 Jessica Chastain's peerless performance (deserves an Oscar for sure).
2 Created good thriller as well, and it will not loose the grip till they found the location of Bin laden.
Weakness
1 Long duration: about more than 2:30 hours, rather than the movie could cover the whole story in 2 hours.
2 The worst part is when they killed Osama (its kinda boring).
So, for my side it was a good movie, Jessica Chastain and Jason Clarke(Dan) played a very good role in it.I gave 7/10 just for Jessica's performance and it was only one time watchable but not an Oscar type material.