How many movies have Ise Cheng Gin-Ping and Johnnie To Kei-Fung collaborated on?

They have worked on 3 movies together! Their first movie together was Sisters of the World Unite (1991) while their highest rated movie together was The Heroic Trio (1993). They have not worked together since Heroic Trio 2: Executioners (1993). They are most known for their comedy films together.