The Magic Crystal (Chinese: 魔翡翠) is a 1986 Hong Kong action film written and directed by Wong Jing. The film stars Andy Lau and Cynthia Rothrock.It is about a mysterious crystal that holds powers to be able to do both nice and terrible things. The film is well known for being one of those 'so bad it's good' films. What saves the film from total mediocrity is its high-octane martial arts scenes.