Question: Were both Alexander Hall and Jon Amiel both considered film directors?

Context paragraphs:
The Core: The Core is a 2003 American science fiction disaster film.  The film focuses on a team whose mission is to drill to the center of the Earth and set off a series of nuclear explosions in order to restart the rotation of the Earth's core.  The film was directed by Jon Amiel, and stars Aaron Eckhart, Hilary Swank, Delroy Lindo, Stanley Tucci, Tchéky Karyo, DJ Qualls, Bruce Greenwood and Alfre Woodard.

Creation (2009 film): Creation is a 2009 British biographical drama film about Charles Darwin's relationship with his wife Emma and his memory of their eldest daughter Annie, as he struggles to write "On the Origin of Species".  The film, directed by Jon Amiel and starring real life couple Paul Bettany and Jennifer Connelly as Charles and Emma Darwin, is a partly biographical, partly fictionalised account, based on Randal Keynes's Darwin biography "Annie's Box".

Alexander Hall: Alexander Hall (January 11, 1894, Boston, Massachusetts – July 30, 1968, San Francisco, California) was an American film director and theatre actor.

Tony Grisoni: Tony Grisoni (born 28 October 1952) is a British screenwriter.  He lives in London.  His first feature film, "Queen of Hearts", directed by Jon Amiel, won the Grand Prix at the 1990 Festival du Film de Paris.

Tune in Tomorrow: Tune in Tomorrow is a 1990 film comedy directed by Jon Amiel.

The Man Who Knew Too Little: The Man Who Knew Too Little is a 1997 American-German spy comedy film starring Bill Murray, directed by Jon Amiel, and written by Robert Farrar and Howard Franklin.  The film is based on Farrar's novel "Watch That Man", and the title is a parody of Alfred Hitchcock's 1934 film "The Man Who Knew Too Much" and his 1956 remake of the same title.

Sommersby: Sommersby is a 1993 romantic drama film directed by Jon Amiel and starring Richard Gere, Jodie Foster, Bill Pullman and James Earl Jones.

Jon Amiel: Jon Amiel (born 20 May 1948) is an English film director who has since the early 1980s worked in film and television in both the UK and the US.

Bangladesh Film Directors Association: Bangladesh Film Directors Association is the pan-national trade body of film directors in Bangladesh.  The Bangladesh Film Directors Association’s General Secretary is Badiul Alam Khokon.  Mushfiqur Rahman Gulzar is the president of Bangladesh Film Directors Association.

Entrapment (film): Entrapment is a 1999 American caper film directed by Jon Amiel and written by Ronald Bass.  It stars Sean Connery and Catherine Zeta-Jones and includes Will Patton, Ving Rhames and Maury Chaykin.  The film focuses on the relationship between investigator Virginia "Gin" Baker and notorious crook Robert "Mac" MacDougal as they attempt a heist at the turn of the New Millennium.  The film was released theatrically in the United States on 30 April 1999 and in the United Kingdom on 2 July 1999.

Supporting paragraphs: Alexander Hall Jon Amiel
Answer: yes