How many movies have Chapman To and Howard Sit Lap-Yin acted in together?

They have worked on 2 movies together! Their first movie together was 1:99 Shorts (2003) while their highest rated movie together was Wait 'Til You're Older (2005). They have not worked together since Wait 'Til You're Older (2005).

Wait 'Til You're Older (2005)

Role
Policeman
Role
Kwong Kid

1:99 Shorts (2003)

Role
1), 10) & 11)
Role
3)