Drunken Tai Chi is a 1984 Hong Kong martial arts action film directed by Yuen Woo-ping and starring Donnie Yen in his first major role.
 Yen had signed a four-film contract after winning an open talent search hosted by Yuen, and "Drunken Tai Chi" was one of the contracted films.
 "Drunken Tai Chi" was the last film in its distinctive genre of kung fu comedy.
Iron Monkey is a 1993 Hong Kong martial arts film written and produced by Tsui Hark and directed by Yuen Woo-ping, starring Donnie Yen, Yu Rongguang, Jean Wang, Angie Tsang and Yuen Shun-yi.
 It is not related to the 1977 Hong Kong film of the same title.
Drunken Master III is a 1994 Hong Kong martial arts film directed by Lau Kar-leung and starring Andy Lau, Michelle Reis, Willie Chi, Simon Yam, Lau Kar-leung, Adam Cheng and Gordon Liu.
 This film was quickly produced after director Lau and Jackie Chan fell out on the set of "Drunken Master II" with the style of action and Lau decided to produce a more authentic entry in the "Drunken Master" film series.
 Despite the title, "Drunken Master III" is not a sequel to the "Drunken Master" film series and is widely considered an imitator.
Wing Chun () is a 1994 Hong Kong martial arts action drama film produced and directed by Yuen Woo-ping, starring Michelle Yeoh and Yen Chi-tan.
 The film was preceded by a 1994 television series of the same name.
Yuen Woo-ping (; born 1945) is a Chinese martial arts choreographer and film director, renowned as one of the most successful and influential figures in the world of Hong Kong action cinema.
 He is one of the inductees on the Avenue of Stars in Hong Kong.
 Yuen is also a son of Yuen Siu-tien, a renowned martial arts film actor.
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.
Tai Chi Master (), also known as Tai-Chi Master and Twin Warriors, is a 1993 Hong Kong martial arts film directed by Yuen Woo-ping, and produced by Jet Li, who also starred in the film.
 The film was released in Hong Kong on 18 November 1993.
Snake in the Eagle's Shadow () is a 1978 Hong Kong martial arts action film directed by Yuen Woo-ping in his directorial debut, and starring Jackie Chan, Hwang Jang Lee and Yuen Woo-ping's real life father, Yuen Siu Tien.
The Miracle Fighters is a 1982 Hong Kong martial arts fantasy comedy film directed by Yuen Woo-ping and starring Bryan Leung, Yuen Cheung-yan and Yuen Yat-cho.
 The film's action sequences features various elements of fantasy which includes magic.
 It was followed by two sequels, "Shaolin Drunkard" (1983) and "Taoism Drunkard" (1984) which are similar style films with different storylines.
Yuen Siu-tien () (27 November 1912 – 8 January 1979) (also known as Yuan Xiaotian, Simon Yuen, Sam Seed or "Ol' Dirty") was a Hong Kong martial arts film actor in the late 1970s.
 Yuen is perhaps best known as Beggar So (A.K.A Sam Seed) in three films: "Drunken Master", "Story of Drunken Master" and his final film "Dance of the Drunk Mantis".
 He starred in several films with film actors like Jackie Chan and under the direction of his real life son Yuen Woo-ping.

Question: Drunken Master earned two and a half times the amount of This Hong Kong martial arts action  film directed by Yuen Woo-ping that came out in what year?
Answer: 1978