Question: Were Edwin Greenwood and Andrew Lau Wai-Keung both directors?
Sentence (from "Andrew Lau"): A highly prolific filmmaker, Lau has made films in a variety of genres, and is most notable in the West for his action and crime films which include the "Young and Dangerous" film series, the "Infernal Affairs" trilogy (the latter co-directed together with Alan Mak), and "Revenge of the Green Dragons" (executive produced by Martin Scorsese).
Relevant evidence: No