question: Which 2012 Hong Kong police thriller film stars one of the "Four Heavenly Kings" of Hong Kong?
answer: Cold War
context: Title: Aaron Kwok
  Passage: Aaron Kwok Fu-shing (born 26 October 1965) is a Hong Kong singer, dancer and actor.  Active since the 1980s, Kwok is considered one of the "Four Heavenly Kings" of Hong Kong.  Kwok's onstage dancing and displays is influenced by Michael Jackson.  While most of his songs are in the dance-pop genre, he has experimented with rock and roll, ballad, rock, R&B, soul, electronica and traditional Chinese music.
  Title: Andy Lau
  Passage: Andy Lau Tak-wah, BBS, MH, JP (, born 27 September 1961) is a Hong Kong actor, singer, lyricist and film producer.  He has been one of Hong Kong's most commercially successful film actors since the mid-1980s, performing in more than 160 films while maintaining a successful singing career at the same time.  In the 1990s, Lau was branded by the media as one of the Four Heavenly Kings of Cantopop.
  Title: Cold War (film)
  Passage: Cold War is a 2012 Hong Kong police thriller film directed by Sunny Luk and Longman Leung, starring Aaron Kwok and Tony Leung Ka-fai, and guest starring Andy Lau.  The film was selected as the opening film at the 17th Busan International Film Festival and released in Hong Kong, Macau, and mainland China on 8 November 2012.
  Title: Show Luo discography
  Passage: This is the discography of Taiwanese Mandopop artist Show Luo ().  From 1996 to 1998, he was part of a quartet boy band "Four Heavenly Kings" (四大天王), releasing five albums.  Then in 1998, after two members left, he formed a duo "Romeo" (羅密歐), with Ou Han Sheng (); the other member of "Four Heavenly Kings", released two albums and was active till 2000.  In 2003, he debuted as a solo artist with the release of "Show Time".  He has since released eleven Mandarin studio, one Japanese studio, three compilation, one remix and three concert DVD albums.
citations: Cold War (film) Aaron Kwok