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?

Related documents: [0]  [DOC] 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. [END] 
[1]  [DOC] 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. [END]  
Answer: 1978
1978