The main part that interested me was the much of the way the style of the movie was made. Not so much the action sequences, but the overall feel of the film, with the dark, anxious feeling it conveyed.
The storyline was somewhat interesting also, with the dilemma that the main character Todd, played by Daniel Wu, who just had amnesia, had to make on his past life as his memory slowly comes back, and his relationship with wife and the paths and sacrifices everyone makes in their quest for their goals.
I thought there might have been too many scenes left on the cutting floor, as many parts of the film felt choppy and incoherent. Scenes like the attempted rescue of Todd by his father, who was invading whom? Who's these guys carrying coffins? Why are commandos sent into the building? Who is that guy with the crew cut and flak jack doing all the shooting during the same invasion? isn't that our man Todd, who looked and dressed same and was being lead away only a couple of scenes earlier? Only on subsequent viewings would things clear up. Other parts are vague, left hanging and should have been better explored more in depth. Such scenes includes death of Todd's child, why Soong, played by Kwok-Leung Gan was so after the head of the ATF. Some of the scenarios seemed incredible or with plot holes so obvious that you ask yourself `how did that happen.' This might be typical of action movie genres in general though.
The action sequences are OK, with some special effects that looks like it was done with film overlays as opposed to CGI, giving it a low budget feel (by American standard.)
The acting by Daniel Wu seems to be a little dramatized, especially when he is confused and torn between his two realities. Otherwise, he gave a good performance as the reluctant terrorist. Kwok-Leung Gan might not have played it right. He did not do the demigod character usually found in global villains, but he still had a bit of that attitude. Figuring him being a revolutionary, you would think he is only working for the bigger goal of reviving the Khmer Rouge again.
To sum up, moodish movie that had an interesting storyline, something not usually found in films of this genre.