Wai Ka-fai is a Hong Kong filmmaker. Best known for his frequent collaborations with Johnnie To, he co-formed Milkyway Image in 1996, which is now one of the most successful independent film studios in Hong Kong.

Johnnie To Kei-fung is a Hong Kong filmmaker. Popular in his native Hong Kong, To has also found acclaim overseas. Intensely prolific, To has made films in a variety of genres, though in the West he is best known for his action and crime movies, which have earned him critical respect and a cult following, which includes American filmmaker Quentin Tarantino.