Question: What profession do Geoff Murphy and Patrick Tam share? 

Context articles: The Last Outlaw (1993 film)
The Quiet Earth (film)
Patrick Tam (film director)
Geoff Murphy
Freejack
Goodbye Pork Pie
Red King, White Knight
Nigel Hutchinson
The Quiet Earth
Fox Volant of the Snowy Mountain (2006 TV series)

The Last Outlaw is a western starring Mickey Rourke, Dermot Mulroney, Ted Levine, Daniel Quinn, Gavan O'Herlihy, Keith David, John C. McGinley, and Steve Buscemi, along with a variety of other known actors, which has since become a cult classic among western genre fans.
 It was directed by Geoff Murphy and written by Eric Red.
 It was initially broadcast on HBO on October 30, 1993.
The Quiet Earth is a 1985 New Zealand science fiction post-apocalyptic film directed by Geoff Murphy and starring Bruno Lawrence, Alison Routledge and Pete Smith as three survivors of a cataclysmic disaster.
 It is loosely based on the 1981 science fiction novel of the same name by Craig Harrison.
 Its other sources of inspiration have been listed as the 1954 novel "I Am Legend", "Dawn of the Dead", and especially the 1959 film "The World, the Flesh and the Devil", of which it has been called an unofficial remake.
Patrick Tam Kar Ming (; born March 25, 1948) is a Hong Kong film director and film editor.
 He is known as the mentor of Wong Kar-wai.
Geoffrey Peter Murphy {'1': ", '2': ", '3': ", '4': "} (born 13 October 1938) is a New Zealand filmmaker, as a producer, director and screenwriter best known for his work during the renaissance of New Zealand cinema that began in the last half of the 1970s.
 His second feature "Goodbye Pork Pie" (1981) was the first New Zealand movie to win major commercial success on its own soil.
Freejack is a 1992 science fiction action film directed by Geoff Murphy, starring Emilio Estevez, Mick Jagger, Rene Russo, and Anthony Hopkins.
 Upon its release in the United States, the film received mostly negative reviews.
 The screenplay was cowritten by Ronald Shusett.
Goodbye Pork Pie is a 1981 New Zealand film directed by Geoff Murphy, co-produced by Murphy and Nigel Hutchinson, and written by Geoff Murphy and Ian Mune.
 The film was New Zealand's first large-scale local hit.
 One book described it as "Easy Rider" meets the "Keystone Kops".
Red King, White Knight is a 1989 spy thriller television film starring Tom Skerritt, Max von Sydow, and Helen Mirren.
 It was written by Ron Hutchinson and directed by Geoff Murphy.
 It was broadcast in the United States on 25 November 1989.
Robert William Nigel Hutchinson (13 July 1941 – 23 March 2017) was an English-born New Zealand film producer and commercial director best known for co-producing the 1981 film, "Goodbye Pork Pie", with Geoff Murphy.
 Hutchinson also made a small cameo in the classic New Zealand film as a dairy farmer.
 He produced other films and television commercials, most recently "Home by Christmas" in 2010.
The Quiet Earth is a 1981 science fiction novel (ISBN  ) by New Zealand writer Craig Harrison.
 The novel was adapted into a 1985 New Zealand science fiction film of the same name directed by Geoff Murphy.
Fox Volant of the Snowy Mountain is a 2006 Hong Kong-Chinese television series adapted from Louis Cha's novels "Fox Volant of the Snowy Mountain" and "The Young Flying Fox".
 Directed by Andrew Lau and Tam Yau-yip, the series is a co-production by the Hong Kong companies ATV and Ciwen Pictures, with Wong Jing as producer, starring Nie Yuan, Athena Chu, Gillian Chung, Ady An, Alex Fong, Anthony Wong and Patrick Tam.
 It was first broadcast in Hong Kong on ATV in 2006.