Question: Were Edwin Greenwood and Andrew Lau Wai-Keung both directors?

Context articles: A Woman in Pawn
Andrew Lau
From Vegas to Macau III
What Money Can Buy
The Duel (2000 film)
Edwin Greenwood
The Co-Optimists (film)
Tesha
The Audacious Mr. Squire
The Fair Maid of Perth (film)

A Woman in Pawn is a 1927 British silent crime film directed by Edwin Greenwood and starring Gladys Jennings, John Stuart and Lauderdale Maitland.
 It was based on a melodramatic play by Frank Stayton.
 It was made at the Lime Grove Studios in Shepherd's Bush.
Andrew Lau Wai-Keung (born 4 April 1960) is a Hong Kong film director, producer, and cinematographer.
 Lau began his career in the 1980s and 1990s, serving as a cinematographer to filmmakers such as Ringo Lam, Wong Jing and Wong Kar-wai.
 In the 1990s, Lau decided to have more creative freedom as a cinematographer by becoming a film director and producer.
 Apart from making films in his native Hong Kong, Lau has also made films in China, Korea and the United States.
 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).
From Vegas to Macau III (賭城風雲III) is a 2016 Hong Kong-Chinese action comedy film directed by Andrew Lau and Wong Jing and starring Chow Yun-fat, Andy Lau, Nick Cheung and Li Yuchun, with special appearances by Jacky Cheung and Carina Lau.
 The film is the third and final installment of the "From Vegas to Macau" series.
 The film was released on 6 February 2016 in Hong Kong and on 8 February 2016 in China.
What Money Can Buy is a 1928 British silent drama film directed by Edwin Greenwood and starring Madeleine Carroll, Humberston Wright and John Longden.
 A rake makes a bet that he can seduce a woman if he offers her enough money.
The Duel is a 2000 Hong Kong "wuxia" comedy film directed by Andrew Lau and starring Andy Lau, Ekin Cheng, Nick Cheung, Kristy Yang, Zhao Wei and Patrick Tam.
 The film is adapted from "Juezhan Qianhou" of Gu Long's "Lu Xiaofeng" novel series.
 It is known for its humorous take on the original story and its special effects.
Edwin Greenwood (1895-1939) was a British screenwriter and film director.
The Co-Optimists is a 1929 British concert musical film directed by Edwin Greenwood and Laddie Cliff and starring Davy Burnaby, Stanley Holloway and Betty Chester.
 It was made at Twickenham Studios.
Tesha is a 1928 British drama film directed by Victor Saville and Edwin Greenwood and starring María Corda, Jameson Thomas and Paul Cavanagh.
 A man's wife has an affair with his best friend and becomes pregnant.
 The film was originally shot as a silent film but in 1929 sound was added.
The Audacious Mr. Squire is a 1923 British silent comedy film, directed by Edwin Greenwood, written by Eliot Stannard, produced by Edward Godal and starring Jack Buchanan, Valia and Dorinea Shirley.
The Fair Maid of Perth is a 1923 British silent adventure film directed by Edwin Greenwood and starring Russell Thorndike, Sylvia Caine and Lionel d'Aragon.
 It was made at Beaconsfield Studios, and based on the 1828 novel "The Fair Maid of Perth" by Sir Walter Scott.