The Viral Factor

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The Viral Factor
Official poster for The Viral Factor
Traditional 逆戰
Simplified 逆战
Mandarin Nì Zhàn
Cantonese Jik6 Zin3
Directed by Dante Lam
Produced by Candy Leung
Screenplay by Dante Lam
Jack Ng
Story by Dante Lam
Candy Leung
Starring Jay Chou
Nicholas Tse
Music by Peter Kam
Cinematography Kenny Tse (HKSC)
Edited by Azrael Chung (HKSE)
Emperor Motion Pictures
Distributed by Emperor Motion Pictures
Release date(s)
  • January 17, 2012 (2012-01-17)
Running time 120 minutes
Country Hong Kong
Language Cantonese
Budget HK$200 million
Box office HK$22,212,450
(Hong Kong)[2]
¥127.01 million (China)[3]
US$25,414,221 (Worldwide)[4]

The Viral Factor is a 2012 Hong Kong-Chinese action film directed by Dante Lam and starring Jay Chou and Nicholas Tse. The supporting cast includes Lin Peng, Michelle Bai, Andy On, Carl Ng, Liu Kai-chi and Elaine Jin and the action director is Chin Kar-lok. Production started in March 2011,and it was released in January 17, 2012.


On a mission to protect a scientist who has stolen a copy of the smallpox virus in Jordan, Sean (Andy On) betrays his IDC (International Defense Commission) team in order to get the virus so he can mutate it into a biological weapon, develop a vaccine and sell it to a corrupt pharmaceutical company via an arms dealer. The failed mission leaves Jon Man (Jay Chou) injured and his girlfriend Ice (Michelle Bai) dead. With two weeks to live, he decides to spend his remaining days with his mother (Elaine Jin) who tells him that he has a long lost brother, Man Yeung (Nicholas Tse) whom she left behind with his father, Man Tin (Liu Kai Chi). Jon decides to track Yeung down in Malaysia but upon arrival, he discovers that Yeung has become a wanted felon and is part of the plot orchestrated by Sean. Jon is drawn into the conflict, not only to protect his family but to ensure his brother does not go further down the road of unrighteousness and to take down Sean's operation for good.


  • Jay Chou as Jon Man (萬飛)
  • Nicholas Tse as Man Yeung (萬陽)
  • Lin Peng as Rachel Kan (簡麗珊)
  • Michelle Bai as Ice
  • Andy On as Sean Wong (王尚恩) Rogue IDC Agent with intent to unleash a smallpox virus and profit from it by selling a vaccine
  • Carl Ng as Ross, an Interpol Agent and Jon's good friend
  • Liu Kai-chi as Man Tin (萬天), Jon and Man Yeung's father
  • Elaine Jin as Fung Ling (風玲), Jon and Man Yeung's mother
  • Sammy Hung as Mark, Sean's right hand henchman
  • Deep Ng (cameo) as Man Yeung's former partner
  • Philip Keung as Russell, a corrupt cop and IDC asset working for Sean.


With a HK$200 million budget, lead actors Jay Chou and Nicholas Tse had a combined insurance coverage of $150 million and 20 bodyguards to protect them. The budget also included RM70,000 for apartment rentals in Kuala Lumpur.[5] The producers borrowed airplanes from the air force, tanks and other things to use during filming.Filming locations included Hong Kong, Xi'an, Middle East and Malaysia. Around 80% of the movie was filmed in Kuala Lumpur, Malaysia.[6] In the movie, several scenes were shot in the compounds of International Medical University.[5][6] One of the locations used in Malaysia was an abandoned construction site in Kuala Lumpur.[7] Among them, the scene in a traffic jam was filmed at Jalan Raja Chulan, during long weekends and public holidays when fewer people would be in Kuala Lumpur.

Filming scenes in Kuala Lumpur,Malaysia[edit]


  1. ^ Elley, Derek (February 6, 2012). "The Viral Factor". Film Business Asia. Retrieved March 8, 2012. 
  2. ^ "去年票房總結 《復仇者》億元稱霸 《寒戰》破4千萬冠絕港片". 
  3. ^ "内地票房年度总排行:2012年电影". 
  4. ^ "Jik zin -". 
  5. ^ a b Loong Wai Ting (April 27, 2011). "KL date for Hong Kong film". The Malay Mail. Retrieved November 5, 2011. 
  6. ^ a b "Infected by The Viral Factor". The Sun, Malaysia. January 19, 2011. Retrieved January 24, 2012. 
  7. ^ Wong, Emerson (July 26, 2011). "Behind the scenes of The Viral Factor". Retrieved November 5, 2011. 

External links[edit]