How many movies have Lee Pik-Kwan and Raven Choi Yip-San collaborated on?

They have worked on 8 movies together! Their first movie together was Spike Drink Gang (1995) while their highest rated movie together was Young and Dangerous 3 (1996). They have not worked together since Young and Dangerous: The Prequel (1998). They are most known for their crime films together.