How many movies have Ben Ng Ngai-Cheung and Lily Chung Suk-Wai acted in together?

They have worked on 12 movies together! Their first movie together was Red to Kill (1994) while their highest rated movie together was Sexy and Dangerous (1996). They have not worked together since The Legend of Lu Xiaofeng 6 (2007). They are most known for their action films together.