Up 374 this week

Infernal Affairs 2 (2003)
"Mou gaan dou II" (original title)

Your rating:
    1 2 3 4 5 6 7 8 9 10 -/10 X  
Ratings: 7.4/10 from 10,410 users  
Reviews: 44 user | 57 critic

In this prequel to Mou gaan dou (2002), Chan Wing Yan has just become an undercover cop in the triads while Lau Kin Ming joins the police force. Both the triads and the police find an enemy in a rival crime boss.


(as Andrew Lau) ,
0Check in

User Lists

Related lists from IMDb users

list image
a list of 29 titles
created 29 Nov 2010
a list of 35 titles
created 05 Feb 2013
a list of 29 titles
created 11 months ago
a list of 27 titles
created 1 month ago
a list of 43 titles
created 1 month ago

Search for "Mou gaan dou II" on

Connect with IMDb

Share this Rating

Title: Infernal Affairs 2 (2003)

Infernal Affairs 2 (2003) on IMDb 7.4/10

Want to share IMDb's rating on your own site? Use the HTML below.

Take The Quiz!

Test your knowledge of Infernal Affairs 2.

User Polls

4 wins & 11 nominations. See more awards »
Learn more

People who liked this also liked... 

Action | Crime | Drama
    1 2 3 4 5 6 7 8 9 10 7/10 X  

Months after the events of the original film, Ming suspects a police superintendent as being a new mole for the triads, while years earlier, Yan embarks on his first mission.

Directors: Wai-keung Lau, Alan Mak
Stars: Tony Chiu Wai Leung, Andy Lau, Leon Lai
Batman Begins (2005)
Action | Crime | Thriller
    1 2 3 4 5 6 7 8 9 10 8.3/10 X  

After training with his mentor, Batman begins his war on crime to free the crime-ridden Gotham City from corruption that the Scarecrow and the League of Shadows have cast upon it.

Director: Christopher Nolan
Stars: Christian Bale, Michael Caine, Ken Watanabe
The Killer (1989)
Action | Crime | Thriller
    1 2 3 4 5 6 7 8 9 10 8/10 X  

A disillusioned assassin accepts one last hit in hopes of using his earnings to restore vision to a singer he accidentally blinded, only to be double-crossed by his boss.

Director: John Woo
Stars: Yun-Fat Chow, Danny Lee, Sally Yeh
Action | Crime | Drama
    1 2 3 4 5 6 7 8 9 10 7.6/10 X  

A reforming ex-gangster tries to reconcile with his estranged policeman brother, but the ties to his former gang are difficult to break.

Director: John Woo
Stars: Lung Ti, Leslie Cheung, Yun-Fat Chow
Taken I (2008)
Action | Crime | Thriller
    1 2 3 4 5 6 7 8 9 10 7.9/10 X  

A retired CIA agent travels across Europe and relies on his old skills to save his estranged daughter, who has been kidnapped while on a trip to Paris.

Director: Pierre Morel
Stars: Liam Neeson, Maggie Grace, Famke Janssen
Elite Squad (2007)
Action | Crime | Drama
    1 2 3 4 5 6 7 8 9 10 8.1/10 X  

1997, Captain Nascimento has to find a substitute for his occupation while trying to take down drug dealers and criminals before the Pope comes to Rio de Janeiro, Brazil.

Director: José Padilha
Stars: Wagner Moura, André Ramiro, Caio Junqueira
Man on Fire (2004)
Action | Drama | Thriller
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  

In Mexico City, a former assassin swears vengeance on those who committed an unspeakable act against the family he was hired to protect.

Director: Tony Scott
Stars: Denzel Washington, Christopher Walken, Dakota Fanning
Crime | Drama | Thriller
    1 2 3 4 5 6 7 8 9 10 7.5/10 X  

A mild-mannered man becomes a local hero through an act of violence, which sets off repercussions that will shake his family to its very core.

Director: David Cronenberg
Stars: Viggo Mortensen, Maria Bello, Ed Harris
Action | Crime | Drama
    1 2 3 4 5 6 7 8 9 10 7.2/10 X  

A near retired inspector and his unit are willing to put down a crime boss at all costs while dealing with a replacement inspector who is getting in their way. Meanwhile, the crime boss plots a killing spree on them.

Director: Wilson Yip
Stars: Simon Yam, Donnie Yen, Sammo Hung Kam-Bo
Speed (1994)
Action | Thriller
    1 2 3 4 5 6 7 8 9 10 7.2/10 X  

A young cop must prevent a bomb exploding aboard a city bus by keeping its speed above 50 mph.

Director: Jan de Bont
Stars: Keanu Reeves, Dennis Hopper, Sandra Bullock
Action | Crime | Drama
    1 2 3 4 5 6 7 8 9 10 8.1/10 X  

After a prison riot, former-Captain Nascimento, now a high ranking security officer in Rio de Janeiro, is swept into a bloody political dispute that involves government officials and paramilitary groups.

Director: José Padilha
Stars: Wagner Moura, Irandhir Santos, André Ramiro
Fast Five (2011)
Action | Crime | Thriller
    1 2 3 4 5 6 7 8 9 10 7.3/10 X  

Dominic Toretto and his crew of street racers plan a massive heist to buy their freedom while in the sights of a powerful Brazilian drug lord and a dangerous federal agent.

Director: Justin Lin
Stars: Vin Diesel, Paul Walker, Dwayne Johnson


Cast overview, first billed only:
SP Wong Chi Shing (as Anthony Wong)
Francis Ng ...
Shawn Yue ...
Jun Hu ...
SP Luk (as Hu Jun)
Tung Cho 'Joe' Cheung ...
Kwun (as Joe Cheung)
Henry Fong ...
Gandhi (as Fong Ping)
Peter Ngor ...
Arthur Wong ...
Teddy Chan ...
Chung-yue Chiu ...
Mary (as Yu Chiu)
Phorjeat Keanpetch ...
Shipin Ye ...
Socialites (as Ye Shi Pin)


In the prequel of Infernal Affairs. Chan Wing Yan has been expelled from police academy in cause of his relatives to the triad. Now SP Wong give him a chance to undercover the triad family controlled by his half brother Hau. Besides of Ming. He has been ordered to killed Hau father and infiltrated the police department. The story get complicated when Wong's related to Hau father's dead. The avenge is begin when Mary. Sam's wife is the hit order. Now everything is complicated and related Written by PDD

Plot Summary | Plot Synopsis


The Birth Of A Legend (Yi Ge Chuan Qi De Dan Shen) See more »


See all certifications »


Official Sites:


| |


| | |

Release Date:

1 October 2003 (Hong Kong)  »

Also Known As:

Mou gaan dou II  »

Company Credits

Show detailed on  »

Technical Specs


| (TV)

Sound Mix:


Aspect Ratio:

2.35 : 1
See  »

Did You Know?


The line that SP Wong says, "Evil prevails. Only the good die young," is a simplified translation of what he actually says in Cantonese which is an old Chinese saying. See more »


Ngai Wing-Hau: My father always says "what goes around comes around."
See more »


Followed by Infernal Affairs 3 (2003) See more »


Composed by Kwong Wing Chan
Lyrics by Gabor Gombai
Performed by Hungarian Choir
OP: Click Music Ltd.
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Outstanding and Recommended
9 October 2003 | by (Hong Kong) – See all my reviews

After phenomenal success of "Wu Jian Dao (2002)" (or IA for short), a lot of hypes generated around when next two movies in the series are announced. I tend to ignore them and do not expect anything about IA2. Before I got into the cinema, "how would the screenwriters present this time,and how would they connect the characters between them?". After the movie, I would say I am not disappointed.

Like IA, this is also a drama about clashes of characters, not in the form of breath-taking kung fu / wire-work actions we find in traditional Hong Kong cop movie, but starting from their own desire, intentions, hate and positions. If you are looking for a non-stop action flick, I am afraid IA2 would not fulfill you.

But unlike last year's blockbuster, the main theme of IA2 is about the rise and fall of a great gangster family Ngai, other than about the police. The difficult part in making a prequel lies in the fact that as audiences all know too well the new appearences would drop-out one way or the other and the characters from IA must be okay. So the story does not waste efforts in describing most of the adventures, rather, concentrate on how these events shapes things to come. It is sure to the scriptwrites' credits and this alone casts a strong contrast to prequel movies like "Star Wars: Attack of the Clones" (2002).

Moreover, it is not surprising for many audiences relating this with similar movies like "The Godfather". I am not comparing them here, but rather I would point out that the actor Francis Ng, who plays the new gangster head of Nagi family, runs the show. He plays a young, well-educated, cool,calculating, witted, cruel, cunning -- and unpredictable leader. As some critics say, a CEO-style triad boss. On the other hand, he successfully shows Ngai is actually a passionate man whose family comes first. On the other hand, late gang leader is screened for one shot only (pun intended), his character is only reflected, not by flashbacks, but by short monologues recited by Ng. It is a quite demanding job and I would say Ng has done a really good job here.

Speaking of characters, another drift from IA, and many other traditional movies in the genre, female character actually plays "real" effects. Mary, played by Claudia Lau, is the closest girlfriend of Sam Hung. She is not just a powerless, declorative character. Like many female in the course of human history, she is the ignition point of the whole storm.

If the audiences has not forgotten IA actually hints that Inspector Wong (played by award-winning Anthony Wong) and Sam Hung (played by also award-winning Eric Tsang) have known each other for a long time. IA2 unveils their long-time mutual respects, and how all these change as the story flows along. Anthony Wong still delivers a high standard of acting just like in IA and how he plays the 3 ups-and-downs of Inspector Wong is simply terrific. On the contary, gangster Hung, Wong's arch-enemy in IA, is much lighter and more human. As with Wong, this character experiences changes which shapes of what to be seen in IA. However, I find the last party scene is unnecessary and does not seem to connect with the firece and uncanny Hung we used to know.

Relatively, the other major characters seems week. Mainland actor Jun Wu, plays another inspector who is a close partner with Wong. I could see the actor tries. Unfortunately, Wu's character is just too flat. His friendship and his clashes with Wong could not mark strong impressions among the audiences. I have a (probably false) feeling that this character is created to be destroyed and it is a waste of Wu's talents.

The actors portriating the young Wing-yan Chan (by Shawn Yu) and Kin-ming Lau (by Edison Chan) would be the weakest link in IA2. Except for a few scene, Edison puts up a regular expression of somewhat between arragonce and anger. For example, towards the end of airport scene, Lau would have a mixed feeling of guilt, anger, loss and vengence. This is an important scene for Lau's self-centered character, however, the actor simply fails to convince me.

The same goes to Shawn. He fails to play as someone who is torn between his role as a "policeman" and a triad member, his loyalty and duty. Most of the time, he just plays plain and "flat faced". To be fair, he gets a tad better towards the end of the movie as his character begins to merge with the character in IA.

Nonetheless, young actors weight must less as the others.

Speaking about continuity, IA2 does not fail in providing bits and pieces about the backstory of IA. And it is not hard for anyone to catch the images of other minor characters from IA. However, I have a few issues.

First, in IA, we see Hung was an ambitious and man of vision, that is why he implants many moles in the police department in the first place. However, the initial character of Hung seems too soft and passive. Why does he stand by Ngai in the time of crisis? We could not see his importance rises afterwards. Why didn't he use the chance and take out his opponents or expand his influence in the triad, then? Was he just covering himself for his long-term plan?

Also, why Wing-yan Chan remains in the end, even in light of his well-known ties with the Ngai family? How come does he becomes a subordinate of Keung? In IA, the position of Keung and Yan seems to have switched.

Apart from some goofs (accuracy of shooting from a paper bag, ignorance of emptied handgun and way of corspes could be burnt to ashes), the run of the movie stops rather abruptedly twice as timeline transits from year 1991 to 1995 and from 1995 to 1997. The effects on and changes of characters are not appearent so it leaves the audiences with a lot of imaginations and mental exercises. (Not that I hate mental exercises, it is rare for Hong Kong movies to make me enjoy doing so) I think the director could handle the storytelling a bit better smoother and tighter.

Despite of cliches, IA2 delivers a more powerful drama than the original. The acting, directing and many other technical aspects are top notch. The scriptwriters are very clever in telling from the other side of the theme and breaks away the shadow casted by the successful predecessor.

Looking forward to see the real "final" this December.


6 of 7 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
Much better than IA1 aaronlz119
how to watch this series? Keely
Great movie but isn't it like Godfather??? toyguy
I love how every moron buyaababy
child death...... wiggly_noodle
Question on Sam and Yan drunkmastersony
Discuss Infernal Affairs 2 (2003) on the IMDb message boards »

Contribute to This Page