Question: What is the net worth of the chinese film director that starred in Fight Back to School III ?

Context paragraphs:
Liang Wengen: Liang Wengen ( born 1956) is a Chinese entrepreneur in the fields of heavy manufacturing and the founder and chairman of the Sany Heavy Industry.  In 2011, he became the richest man in mainland China, and was tipped to become a member of the Central Committee of the Communist Party of China, with a net worth of about USD $8 billion.  However he lost that position, and as of February 2014 he was the fifteenth richest person in China, with a net worth of about $5.9 billion.

Fight Back to School III: Fight Back to School 3 (逃學威龍3之龍過雞年) is a Hong Kong comedy film produced in 1993 starring Stephen Chow and Cheung Man.  The film was written and directed by Wong Jing, who replaced Gordon Chan as the director of the third installment.

Robert Kuok: Robert Kuok Hock Nien (; born 6 October 1923), is a Malaysian Chinese business magnate and investor.  According to "Forbes", his net worth is estimated at $12.2 billion on July 2017, making him the richest person in Malaysia and second richest in Southeast Asia after Dhanin Chearavanont of Thailand, according to Forbes List of World Billionaires 2013 which Robert Kuok was placed 76th.  As of December 2012, according to the Bloomberg Billionaires Index, Kuok has an estimated net worth of $17.3 billion, making him the 40th richest person in the world.

Robert Budi Hartono: Robert Budi Hartono (; Hokkien: Oei Hwie Tjong; born in 1940) is a Chinese Indonesian tobacco billionaire with a 2015 net worth of US$9.1 billion.  He owns and runs the privately held Djarum, the world's third largest maker of clove cigarettes.  Djarum has reportedly recently grabbed shares from the number two cigarette firm, Sampoerna.  Budi Hartono also has a stake with his brother, Michael Bambang Hartono in one of Indonesia's biggest banks, Bank Central Asia, formerly controlled by billionaire Liem Sioe Liong.  In 2009, Budi Hartono's net worth reportedly reached US$4.7 billion and he was nominated as the richest Indonesian while Liem Sioe Liong was in 3rd place.

Alibaba Pictures: Alibaba Pictures Group is a Chinese film company under Alibaba Group.  The film company was formerly ChinaVision Media, of which Alibaba Group bought a majority stake in late 2014.  It subsequently was renamed from ChinaVision to Alibaba Pictures Group.  By April 2015, it was the largest Chinese film company by worth, with a market value of US$8.77 billion and by June of the same year it was worth US$9.6 billion.

Lim Kok Thay: Tan Sri Dato Seri' Lim Kok Thay (林国泰 ; born 1951) is a wealthy Malaysian Chinese businessman.  He has a net worth of US$4.71 Billion, make him Malaysia's sixth richest person.  He is the second son of Tan Sri Lim Goh Tong, the founder of the Genting Group and Puan Lee Kim Fa.  Now he is the CEO & Chairman of Genting Group, which one of the largest casinos, resorts & cruises company with market cap almost US$ 40 Billion.  His family net worth is about US$4.5 Billion.

Fight Back to School II: Fight Back to School 2 () is a 1992 Hong Kong comedy film directed by Gordon Chan and starring Stephen Chow, Ng Man-Tat and Cheung Man.  It is a sequel to the 1991 film "Fight Back to School".

Stephen Chow: Stephen Chow Sing-chi (, born 22 June 1962) is a Chinese film director, actor, producer, political adviser of the Chinese People's Political Consultative Conference and martial artist.  His net worth is US$950 million.

City Hunter (film): City Hunter (; "Sing si lip yan") is a 1993 Hong Kong action comedy film written and directed by Wong Jing, starring Jackie Chan, Joey Wong, Kumiko Goto and Chingmy Yau.  The film is based on the Japanese manga of the same name.  The film was released in the Hong Kong on 14 January 1993 along with Stephen Chow's "Fight Back to School III".

Xu Ming: Xu Ming (; April 1971 – 4 December 2015) was a Chinese entrepreneur and onetime billionaire.  He was the founder of the conglomerate Dalian Shide Group, and the chairman of Dalian Shide F.C., China's top football club in the 2000s.  In 2005 "Forbes" ranked him the eighth-richest person in China, with an estimated net worth of US$1.05 billion, but his net worth declined to $690 million in 2011.  The 2013 Hurun Report estimated his wealth to be around US$490 million, ranking 676th in China.

Supporting paragraphs: Fight Back to School III Stephen Chow
Answer: US$950 million