Question: Ron Shelton and Gillies MacKinnon, have which mutual occupations?

Context paragraphs:
Stuart Bunce: Stuart Alexander Bunce (born 21 October 1971) is an English actor who is best known for his portrayal of the First World War poet Wilfred Owen in the film "Regeneration" directed by Gillies MacKinnon.

The Last of the Blonde Bombshells: The Last of the Blonde Bombshells is a 2000 British-American television film directed by Gillies MacKinnon.  The script by Alan Plater focuses on the efforts of a recently widowed woman to reunite the members of the World War II-era swing band with which she played saxophone.

The Escapist (2002 film): The Escapist is a 2002 film directed by Gillies MacKinnon and written by Nick Perry.

The Playboys: The Playboys is a 1992 Irish film directed by Gillies MacKinnon and starring Albert Finney, Aidan Quinn and Robin Wright.  The plot follows an unwed young mother whose life is transformed with the arrival of a travelling troupe of actors to her Irish village.  The script was written by Shane Connaughton, an Oscar nominee for "My Left Foot".  The film was shot in his native village Redhills, in County Cavan, Ireland.

Whisky Galore! (2016 film): Whisky Galore!  is a 2016 British film, a remake of the 1949 Ealing Comedy of the same name.  It was directed by Gillies MacKinnon and stars Gregor Fisher, Eddie Izzard, Sean Biggerstaff and Naomi Battrick.  The film premiered at the 2016 Edinburgh Film Festival and will get general release in the UK in May 2017.

Trojan Eddie: Trojan Eddie is a 1996 British-Irish crime drama film directed by Gillies MacKinnon.

Gillies MacKinnon: Gillies MacKinnon (born 8 January 1948, Glasgow) is a Scottish film director, writer and painter.  He attended the Glasgow School of Art where he studied mural painting.  Following this he became an art teacher and cartoonist, and about this time he traveled with a nomadic tribe in the Sahara for six months.  In the 1970s he studied at the Middlesex Polytechnic and in the 1980s in the National Film and Television School.  He made a short film called "Passing Glory" as his graduation piece, a dour recreation of Glasgow in the 1950s and 1960s.  It was premiered at the 1986 Edinburgh International Film Festival, where it won the first Scottish Film Prize.

Small Faces (film): Small Faces (1996) is a Scottish film directed by Gillies MacKinnon about gangs, specifically the Tongs, in 1960s Glasgow.  It stars Iain Robertson, Joseph McFadden, Steven Duffy, Kevin McKidd, Laura Fraser, Mark McConnochie, Clare Higgins, Garry Sweeney, Colin McCredie and Alastair Galbraith.

Regeneration (1997 film): Regeneration is a 1997 British film, an adaptation of the novel of the same name by Pat Barker.  The film is directed by Gillies MacKinnon.  It was released as Behind the Lines in the US in 1998.  The film follows the stories of a number of Officers of the British Army during World War I who are brought together in Craiglockhart War Hospital where they are treated for various trauma.  It features the story of Siegfried Sassoon, his open letter reprinted in The Times criticising the conduct of the war and his return to the front.

Ron Shelton: Ronald Wayne "Ron" Shelton (born September 15, 1945) is an American Oscar-nominated film director and screenwriter and former minor league baseball infielder.  Shelton is known for the many films he has made about sports.

Supporting paragraphs: Ron Shelton Gillies MacKinnon
Answer: film director, writer