Task: Explanation
Input (English): Maggie Cheung Man-yuk (; born 20 September 1964) is a Hong Kong actress. Raised in Britain and Hong Kong, she has over 80 films to her credit since starting her career in 1983. Some of her most commercially successful works were in the action genre, but Cheung once said in an interview that of all the work she has done, the films that really meant something to her are "Song of Exile", "Centre Stage", "" and "In the Mood for Love". As Emily Wang in "Clean", her last starring role to date, she became the first Asian actress to win a prize at the Cannes Film Festival. Question: Sister Cupid is a 1987 Hong Kong romantic fantasy comedy film starring the first Asian actress to win a prize at what? Answer: Cannes Film Festival
Output (English):  As Emily Wang in Clean, her last starring role to date, she became the first Asian actress to win a prize at the Cannes Film Festival.