We saw this at SFFILM's Hong Kong Cinema series. Director Lee Cheuk-pan and actors Hanna Chan and Kyle Li were in attendance for a short Q&A after the showing. This was the directorial debut for Lee. I'm unfamiliar with the work of the three artists who attended, and only recognized one other name in the cast, Chapman To (Infernal Affairs, Beautiful Country). All of the actors were excellent in G Affairs, with To and Huang Lu the standouts. The latter two played a corrupt cop and a whore-with-heart-of-gold, which is to say, the characters in the film are largely stereotypes. But the style of the film is quirky enough that you don't always notice those stereotypes, and To and Lu do wonders with the material. To say that To plays a corrupt cop is a bit repetitive ... in G Affairs, if you are a cop, you are corrupt. Basically, everyone and everything in the movie is corrupt. Hong Kong society is a mess, from the teenagers at the elite high school to the criminal scum. Chan's character seems sweet enough ... she also gives blow jobs to her teacher, eventually getting gonorrhea. It's that kind of movie. The letter "G" is a gimmick ... everything in the plot is connected in some way to words that begin with a G (gravity, guns, a dog named Gustav), and it was never clear why the English letter turned up in the lives of people speaking Chinese. (This was addressed in the Q&A, and I still didn't understand it.)
Honestly, there was a lot I didn't understand about G Affairs. Some of this can be attributed to the Hong Kong specificity of the film ... I was more certain than usual that I was missing a lot of cultural clues. But Lee also uses a fragmented style that further muddies the narrative. If you are the type who doesn't mind this kind of muddying (or even enjoys it), you will get more out of G Affairs than I did. Good acting and a style that always looked good, even when I had no idea what I was watching, meant I found G Affairs an interesting 105 minutes, and Lee, only 33 years old, seems to have a good future ahead for him. But I wasn't blown away.
And look out for that severed head.