Question: What occupation does Mark Joffe and Neil Marshall have in common?

Context articles: Dog Soldiers (film)
Tyler Bates
Mark Joffe
Centurion (film)
Grievous Bodily Harm
Spotswood (film)
Cosi (film)
The Man Who Sued God
Doomsday (2008 film)
Neil Marshall

Dog Soldiers is a 2002 British action horror film written and directed by Neil Marshall, and starring Kevin McKidd, Sean Pertwee and Liam Cunningham.
 A British production, set in the highlands of Scotland, it was filmed almost entirely in Luxembourg.
 In the U.S., it premiered as a Sci Fi Pictures telefilm on the Sci Fi Channel.
Tyler Bates (born June 5, 1965) is an American musician, music producer, and composer for films, television, and video games.
 Much of his work is in the action and horror film genres, with films like "Dawn of the Dead, 300, Sucker Punch," and "John Wick."
 He has collaborated with directors like Zack Snyder, Rob Zombie, Neil Marshall, William Friedkin, Scott Derrickson, and James Gunn.
 With Gunn, he has scored every one of the director's films; including "Guardians of the Galaxy", which became one of the highest grossing domestic movies of 2014, and its 2017 sequel.
 In addition, he is also the lead guitarist of the American rock band Marilyn Manson, and produced its albums "The Pale Emperor" and "Heaven Upside Down".
Mark Joffe (born 1956) is an Australian film and television director.
 He has directed feature films, telemovies, and drama series.
Centurion is a 2010 British historical action-war film directed by Neil Marshall, loosely based on the disappearance of the Roman Empire's Ninth Legion in Caledonia in the early second century AD.
 The film stars Michael Fassbender, Dominic West, and Olga Kurylenko.
 It received mixed to positive reviews and performed poorly at the box office, only earning half of its $12m budget.
Grievous Bodily Harm is a 1988 Australian crime film directed by Mark Joffe starring Colin Friels and John Waters.
Spotswood is an Australian drama film directed by Mark Joffe, made in 1990-1991, released in 1992 in some locations; also known as The Efficiency Expert in the United States.
Cosi is a 1996 Australian comedy-drama film directed by Mark Joffe.
 Louis Nowra wrote both the screenplay and it is based on his play "Così".
The Man Who Sued God is a 2001 Australian comedy film starring Billy Connolly and Judy Davis, and directed by Mark Joffe.
 The film was a financial success, debuting at number one at the Australian box office in the week of its launch and as of 2013 remains the 28th highest grossing Australian film of all time.
Doomsday is a 2008 science fiction action horror film written and directed by Neil Marshall.
 The film takes place in the future in Scotland, which has been quarantined because of a deadly virus.
 When the virus is found in London, political leaders send a team led by Major Eden Sinclair (Rhona Mitra) to Scotland to find a possible cure.
 Sinclair's team runs into two types of survivors: marauders and medieval knights.
 "Doomsday" was conceived by Marshall based on the idea of futuristic soldiers facing medieval knights.
 In producing the film, he drew inspiration from various movies, including "Mad Max", "Escape from New York" and "28 Days Later".
Neil Marshall (born 25 May 1970) is an English film director, editor and screenwriter.
 Marshall began his career in editing and in 2002 directed his first feature film "Dog Soldiers", a horror-comedy film which became a cult film.
 He followed up with the critically acclaimed horror film "The Descent" in 2005.
 Marshall also directed "Doomsday" in 2008, and wrote and directed "Centurion" in 2010.
 He has also directed two prominent episodes of US television series "Game of Thrones": "Blackwater" and "The Watchers on the Wall", with particular acclaim for his direction on both occasions, as well as a nomination for a Primetime Emmy Award for Outstanding Directing for a Drama Series for "The Watchers on the Wall".