Question: What is the currency in the country that released Red Nights?

full_context: Document 1: Australian dollar: The Australian dollar (sign: $; code: AUD) is the currency of the Commonwealth of Australia, including its external territories Christmas Island, Cocos (Keeling) Islands, and Norfolk Island, as well as the independent Pacific Island states of Kiribati, Nauru, Papua New Guinea, Tonga, Tuvalu, and Vanuatu. Within Australia, it is almost always abbreviated with the dollar sign ($), with A $or AU $sometimes used to distinguish it from other dollar - denominated currencies. It is subdivided into 100 cents.
Document 2: The Blood Rose: "The Blood Rose" opened in France on September 25, 1970. The film was shown in the United States in Detroit on October 28, 1970. The film had scenes involving lesbianism that were cut for its American theatrical release.
Document 3: Bahamian dollar: The dollar (sign: $; code: BSD) has been the currency of The Bahamas since 1966. It is normally abbreviated with the dollar sign "$", or alternatively B$ to distinguish it from other dollar-denominated currencies. It is divided into 100 cents.
Document 4: Hong Kong dollar: The Hong Kong dollar (Chinese: 港幣; Cantonese Yale: Góng bàih; sign: HK $; code: HKD) is the official currency of Hong Kong. It is subdivided into 100 cents. The Hong Kong Monetary Authority is the governmental currency board and also the de facto central bank for Hong Kong and the Hong Kong dollar.
Document 5: History of Chinese currency: The currency became legal tender in China commencing in 1937. It was later replaced by issues from puppet banks. However, the currency remained in force in Hong Kong between 1941 and 1945. Initially set at HK$2 = JMY1, the Hong Kong dollar was largely preferred by locals and hoarded away. In order to address this, the Japanese government made possession of Hong Kong dollars illegal in 1943 and required a conversion to JMY at 4 to 1.
Document 6: Color Me Blood Red: Color Me Blood Red is a 1965 splatter film written and directed by Herschell Gordon Lewis about a psychotic painter who murders civilians and uses their blood as red paint. It is the third part of what the director's fans have dubbed "The Blood Trilogy", including "Blood Feast" (1963) and "Two Thousand Maniacs!" (1964).
Document 7: Red Nights: Red Nights ("Les Nuits rouges du Bourreau de Jade") is a 2010 French-Hong Kong film by Julien Carbon and Laurent Courtiaud. It is a thriller and a tale of erotic horror. The filmmakers call it a Hong Kong "giallo" with mystery, (sadistic) murders, fetishism and women. The film played at the 2010 Toronto International Film Festival in the Midnight Madness section.
Document 8: Wedding in Blood: Wedding in Blood, also known as Red Wedding in the UK () is a 1973 French thriller film directed by Claude Chabrol. It was entered into the 23rd Berlin International Film Festival.
Document 9: The Blood Rose: The Blood Rose () is a 1970 French horror film directed and co-written by Claude Mulot. The French title translates as "The Flayed Rose".
Document 10: Daughters of Darkness: Daughters of Darkness (in France, Les Lèvres Rouges, in Belgium, Le Rouge aux Lèvres (the former literally translated as "The Red Lips" and the latter as "The Red on the Lips") and in the Netherlands, Dorst Naar Bloed (meaning "Blood Thirst") is a 1971 Belgian horror film (with dialogue in English), directed by Harry Kümel. It is an erotic vampire film.
Document 11: The Red Eagle: "The Red Eagle" was released in Thailand on October 7, 2010. The film had its international premiere at the 15th Busan International Film Festival on October 10. "The Red Eagle"'s Thai box office returns have been described as "underperformed" and "disappointing".
Document 12: Thai baht: The baht (; Thai: บาท, pronounced [bàːt]; sign: ฿; code: THB) is the official currency of Thailand. It is subdivided into 100 satang (สตางค์, pronounced [sātāːŋ]). The issuance of currency is the responsibility of the Bank of Thailand.
Document 13: Bermudian dollar: The Bermudian dollar (symbol: $; code: BMD; also abbreviated BD$; informally called the Bermuda dollar) is the official currency of the British Overseas Territory of Bermuda.  It is subdivided into 100 cents. The Bermudian dollar is not normally traded outside Bermuda, and is pegged to the United States dollar at a one-to-one ratio.  Both currencies circulate in Bermuda on an equal basis.
Document 14: Blood Tea and Red String: Blood Tea and Red String is a stop-motion-animated feature film, called by director Christiane Cegavske a "fairy tale for adults". It was released on February 2, 2006 after a production time of 13 years, having been filmed in various places in the West Coast and in two studios. The musical score was composed and performed by Mark Growden.
Document 15: Malaysian ringgit: The Malaysian ringgit (/ ˈrɪŋɡɪt /; plural: ringgit; symbol: RM; currency code: MYR; formerly the Malaysian dollar) is the currency of Malaysia. It is divided into 100 sen (cents). The ringgit is issued by the Bank Negara Malaysia.
ground_truth: Hong Kong dollar
sub_queries: The country for Red Nights was what? Answer: Hong Kong
what is the currency in Hong Kong china Answer: Hong Kong dollar