Who was a Greek film director Andrew Lau or Yannis Smaragdis? 
Andrew Lau: Andrew Lau Wai-Keung (born 4 April 1960) is a Hong Kong film director, producer, and cinematographer. Yannis Smaragdis: Iannis Smaragdis (Greek: Γιάννης Σμαραγδής ) is a Greek film director.
Iannis Smaragdis (Greek: Γιάννης Σμαραγδής ) is a Greek film director.