Compared to when this movie first came out in the year 2009, I do think that it's quite the gem.
This movie features a female lead without all of the romance. Looking at the priorities of the main lead was quite refreshing (compared to some movies where the female lead tends to rely quite a bit on the male lead).
The plot and acting of all the characters is probably one of the best. It was one of those rare times where the villain impressed me as much as the main character.
The VFX and graphics weren't as impressive but the plot and characters should be more than enough for that to be overlooked.
I would recommend watching this if you want to find an intriguing supernatural story with a fantastic female lead and villain.