Question: The Eighth Happiness stars this actor, regarded as one of four what?

full_context: Document 1: How to Meet the Lucky Stars: How to Meet the Lucky Stars () is a 1996 Hong Kong action comedy film and the final film in the "Lucky Stars" film series. Featuring the "Lucky Stars" Sammo Hung (in his original role and another role as a cop), Eric Tsang, Richard Ng, Stanley Fung, Michael Miu and new cast member Vincent Lau as Hung's younger cousin and Françoise Yip as their love interest (except for Hung and Lau). Also featuring a number of guest appearances including Natalis Chan, Chen Kuan-tai, Cheng Pei-pei, Chan Hung-lit and Nora Miao. It was produced by Tsang, directed by Frankie Chan with action choreography by Yuen Cheung-yan and Mars. The film was released as a benefit film for the famous Hong Kong film director, Lo Wei, who died in 1996.
Document 2: Happy Ghost III: Happy Ghost III () is a 1986 Hong Kong comedy film directed by Johnnie To. Produced and written by Raymond Wong, the film stars Wong and Maggie Cheung. The film is about a spirit of the late female singer Tsui Pan Han (Maggie Cheung) waits in the afterlife for a chance to be reincarnated. She meets the Godfather (Tsui Hark) who has found an appropriate musical family for her to be reincarnated with. Her opportunity to be born into the new family is ruined when Sam Kwai (Raymond Wong) takes the pregnant wife to the wrong hospital. Pan Han is given one month to find a new body to assume her reincarnation in, and decides in the meantime to harass Sam Kwai. Kwai eventually summons the Happy Ghost to help him out.
Document 3: Andy Lau: 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.
Document 4: Sammi Cheng: Sammi Cheng Sau-man (; born 19 August 1972) is a Hong Kong singer and actress. She is one of the most prominent female singers in Hong Kong, with album sales of over 30 million copies throughout the Asia-pacific. Most notably in the 1990s, she was dubbed by the media as the "Cantopop Queen" and diva (Chinese: 天后; literally: "Heavenly Queen"). Having success in over 25 years in entertainment industry, Cheng has also been regarded as one of the most popular Hong Kong artists known in Asia Pacific.
Document 5: List of best-selling albums in Taiwan: This is the list of best-selling albums in Taiwan. Seven domestic albums and one international album have shipped over a million copies in Taiwan. Chinese singer Jacky Cheung is the best-selling artist in Taiwan, with three albums sold more than one million copies, while Taiwanese singer A-mei is the best-selling female artist in Taiwan. Taiwan's album sales peaked in 1990s, but it was adversely impacted by the copyright infringement and Internet downloads since the 21st century.
Document 6: Alan Tam: Alan Tam Wing-lun MH (; born 23 August 1950) is a Hong Kong singer and actor. He played a major role in developing the Cantopop scene in the 1980s as he was known for singing romantic ballads with modern arrangements. Today, he is still active in the music and film industry, releasing new albums on a regular basis. Since the late 1980s, he has served as a mentor for the cantopop music industry, earning the nickname the "Principal" or "Principal Tam". Today he is regularly seen across the media in Hong Kong, mainland China, Taiwan, and various parts of East Asia participating in all types of entertainment related events and charity activities. As of 2013, Alan Tam has launched total 115 solo albums and has sold over 35 million records worldwide, he is also holding the record for having the most concerts in Hong Kong as a solo artist.
Document 7: Drunken Master: Drunken Master () is a 1978 Hong Kong comedy martial arts film directed by Yuen Woo-ping, and starring Jackie Chan, Yuen Siu-tien, and Hwang Jang Lee. The film was a success at the Hong Kong box office, earning two and a half times the amount of Chan's previous film, "Snake in the Eagle's Shadow", which was also considered a successful film. It is an early example of the comedic kung fu genre for which Jackie Chan became famous. The film popularised the Zui Quan ("drunken fist") fighting style. Ranked number 3 on totalfilm.com's 50 greatest kung fu movies of all time.
Document 8: Wong Kar-wai: Wong Kar-wai, BBS (born 17 July 1958) is a Hong Kong Second Wave filmmaker, internationally renowned as an auteur for his visually unique, highly stylized work, including "As Tears Go By" (1988), "Days of Being Wild" (1990), "Ashes of Time" (1994), "Chungking Express" (1994), "Fallen Angels" (1995), "Happy Together" (1997), "2046" (2004) and "The Grandmaster" (2013). His film "In the Mood for Love" (2000), starring Maggie Cheung and Tony Leung, notably garnered widespread critical acclaim.
Document 9: Ashta Chamma: Ashta Chamma is a 2008 Telugu, comedy film written and directed by Mohan Krishna Indraganti. The film deals with four quirky characters interwoven in a romantic narration. The film stars Colours Swathi, Nani, Srinivas Avasarala and Bhargavi in the lead with Tanikella Bharani in a supporting role. The movie is based on Oscar Wilde's play The Importance of Being Earnest. Upon release, the movie received positive reviews and became a super hit at the box office. Colours Swathi and Nani's performances were the main highlights of this film.
Document 10: Leon Lai: Leon Lai-ming, BBS, MH (born 11 December 1966) is a Chinese-born Hong Kong actor and Cantopop singer. He is one of the "Four Heavenly Kings" of Hong Kong. He uses the stage name "Li Ming" or "Lai Ming" which literally means "dawn."
Document 11: Johnnie To: Johnnie To (born 22 April 1955), also known as To Kei-Fung (杜琪峯), is a Hong Kong film director and producer. Popular in his native Hong Kong, To has also found acclaim overseas. Intensely prolific, To has made films in a variety of genres, though in the West he is best known for his action and crime movies, which have earned him critical respect and a cult following (which include Quentin Tarantino, who once said that he really loves to watch To's gangster films).
Document 12: Jackie Chan: Chan Kong-sang, SBS, MBE, PMW, (陳港生 ; born 7 April 1954), known professionally as Jackie Chan, is a Hong Kong martial artist, actor, film director, producer, stuntman, and singer. In his movies, he is known for his acrobatic fighting style, comic timing, use of improvised weapons, and innovative stunts, which he typically performs himself. He has trained in Kung Fu and Hapkido. He has been acting since the 1960s and has appeared in over 150 films.
Document 13: The Eighth Happiness: The Eighth Happiness (八星報喜) is a 1988 Hong Kong comedy film directed by Johnnie To and starring an ensemble cast of Chow Yun-fat, Raymond Wong, Jacky Cheung, Carol Cheng, Cherie Chung, Fung Bo Bo and Fennie Yuen.
Document 14: The Conman: The Conman is a 1998 Hong Kong action comedy film directed by Wong Jing and starring Andy Lau, Athena Chu and Nick Cheung. Despite the Chinese title, which translates as "Knight of Gamblers 1999", Andy Lau does not reprise his role as the "Knight of Gamblers" from the "God of Gamblers" series, which was also directed by Wong Jing. The film was followed by a sequel "The Conmen in Vegas", which Lau and Cheung return with new cast members Natalis Chan, Kelly Lin, Meggie Yu and Alex Man.
Document 15: Jacky Cheung: Jacky Cheung Hok-yau (born 10 July 1961) is a Hong Kong singer, songwriter and actor. With more than 25 million records sold as of 2003, he is regarded as one of the "Four Heavenly Kings" and has been deemed the "God of Songs" of Hong Kong.
ground_truth: Heavenly Kings