Question: Who was the director of the 2013 British short film starring the actor who played Major Lance "Corky" Corkoran in the BBC series "The Night Manager"?
Context: About a Girl is a nine-minute short film directed by Brian Percival.  In 2001 it won the BAFTA Award for Best Short Film.  It also won an award at the Edinburgh International Film Festival for Best British Short, the TCM Classic Shorts Award prize at the London Film Festival, and the Jury Prize at the Raindance Film Festival.  The script was written by Julie Rutterford and the film was produced by Janey de Nordwall.  The leading role was played by Ashley Thewlis. Mansion Pictures was established by British husband and wife team Hannah Davis and David Conolly.  They also produced drama for the BBC and made the critically acclaimed shorts, "A Life In a Day" (nominated for Best Short Film, British Short Film Festival) and "The Other Side of the Mirror". Dolls is a British short film written and directed by Susan Luciani, narrated by Charles Dance and starring Joanna Lumley and Denis Lawson.  Broadcast on BBC and Sky TV, the film was officially selected to play in International film festivals Spain, Italy, France, Cyprus, Africa and Japan and the United States.  It was also shown at Roguerunner Screenings and at the 2006 Cannes Film Festival and was selected to feature as part of the British Society of Cinematographers' New Film Maker Night at Pinewood Studios. Thomas Anthony Hollander (born 25 August 1967) is an English actor.  He began his career in theatre, winning the Ian Charleson Award in 1992 for his performance as Witwoud in "The Way of the World" at the Lyric Hammersmith Theatre.  He is known for his roles in comedic films such as "Pirates of the Caribbean" and "In the Loop" and drama films such as "Enigma", "Pride & Prejudice", "Gosford Park", and "Hanna".  He played the lead role in the sitcom "Rev.", which won the British Academy Television Award for best sitcom in 2011.  He also played the lead in the ITV's "Doctor Thorne" and won the BAFTA Television Award for Best Supporting Actor for his role as Major Lance "Corky" Corkoran in the BBC series "The Night Manager". The Night Manager is a British television serial directed by Susanne Bier and starring Tom Hiddleston, Hugh Laurie, Olivia Colman, David Harewood, Tom Hollander, and Elizabeth Debicki.  It is based on the 1993 novel of the same name by John le Carré and adapted by David Farr to the present day.  The six-part series began broadcasting on BBC One on 21 February 2016.  In the United States, it began on 19 April 2016 on AMC.  IMG sold the series internationally to over 180 countries.  A second series has been commissioned by the BBC and AMC. The Voorman Problem is a 2013 British short film directed and scored by Mark Gill, who also co-wrote the screenplay and edited the film with producer Baldwin Li.  It is adapted from "The Voorman Problem", a film within a story from the novel "number9dream" by David Mitchell, with Martin Freeman starring as a prison psychiatrist, and Tom Hollander as his patient. The Earth Belongs To No One is a 2015 British short drama film directed by film director Ani Laurie and written by Ani Laurie and Katerina Giannakou.  The film is about Jessy-May a volatile 16-year-old who must do everything in her power to protect her little sister.  Starring Jessica Barden and Alana Boden.  It was nominated for Best UK Short film at the 2015 Raindance Film Festival.  It was nominated for numerous awards at the London Short Film Festival 2016 including Best Student Short Film, Best Woman Director, picking up the Rising Star Performance Award on 8 January 2016 for Alana Boden's performance as Sky - playing a character with no dialogue.  It was also part of the official selection at The Montreal World Film Festival WFF in September 2015.  The Earth Belongs To No One received Best storytelling nomination at Chicago International Film Festival for its almost entirely dialogue free storytelling. The One and Only Herb McGwyer Plays Wallis Island is a 2007 short film, directed by James Griffiths, and written by and starring Tim Key and Tom Basden.  It was nominated for a 2008 BAFTA Award for Best Short Film award, and won the UK Film Council Award for Best British Short Film at the Edinburgh International Film Festival. The Phone Call is a 2013 British short drama film.  It was directed by Mat Kirkby and written by Kirkby and James Lucas.  It won the Academy Award for Best Live Action Short Film at the 87th Academy Awards. Volume is a 2012 short film directed by Mahalia Belo and written by Anna Ingeborg Topsøe starring Joe Cole and Anna Brewster.  It won the Best British Short film at the 2012 Moët British Independent Film Awards and the Grand Jury Prize for Best Film at San Francisco Shorts 2013.  It was also part of the official selection at the 2013 Sundance Film Festival while also appearing at numerous other film festival.  "Volume" was director Mahalia Belo's graduation short at the National Film and Television School (NTFS).
Answer: Mark Gill