Infernal Affairs III is a good, though not great, finale to Infernal Affairs series. The movie is more of a tell-all story for every secret thing viewers of the first and second movies might be wondering or confused about.

After the first episode awed us with its highly-suspenseful story, there came the second episode which revealed the history of the first one. This third and final episode is more like an answer to every question many people are wondering after watching the first and second episodes. The techniques used for telling the story in this movie are quite excellent, though it might confuse some viewers a little bit with the story goes back and forth between past and present. And to the fact that this movie came out more than a year after the first one, it makes the confusion even more obvious. I had to go back and watch the first and second episodes again in order to understand every point of the movie and found out that most of the situation in this final episode make sense. True, that there are some points that aren't believeable but they can be forgiven as these are movies after all.

The acting performance in the movie is good with the leading role now shifts to Andy Lau and he handles his job respectably well. Tony Leung is excellent as usual but doesn't have much role as the first one. IMO, the first episode is Tony leung's showcase and this third one belongs to Andy Lau. The only actor who doesn't do his job well is Li Ming; I can't find myself believe that he is a police officer at all.

Anyway, this movie is a good farewell to the series. It is a must-see for people who already watched the first and second episodes. For people who haven't watched the previous episodes, I strongly recommend that you go buy the first two DVDs before getting through this movie. otherwise, you might get confused big time.

7.5/10 IMHO