Agreed I think it comes down to directing, writing, and cast...I think there was tv adaption of infernal affairs but I like actors of series but movie one was more convincing...
Aaron kwok played chor leu heung. I like him in other roles but he didn't fit it for me he still made movie enjoyable.
Funny u got my older brother and his gf, little brother, and sister watching movie 020. Then watch series, they too liked series, but my brother gf didn't like series bc she was jealous of ZS lol. Angel baby is pretty too but I just felt like we we character felt more like she was in series, especially the scene they went to mall and played dressed up or introduced her to other characters of game at dinner. ZS felt more beautiful and elegant.