Question: What industry did both John Grierson and Sam Raimi work in?

Context paragraphs:
Ivan Raimi: Ivan M. Raimi (born 1956) is an American Doctor of Osteopathic Medicine (D.O.), and screenwriter, and the older brother of film director Sam Raimi and actor Ted Raimi.  Ivan Raimi works as an emergency physician in Ann Arbor, traveling to Los Angeles occasionally to work in Hollywood.

It's Murder!: It's Murder!  is a 1977 feature-length film directed by Sam Raimi.  It was co-written and produced by Raimi and Scott Spiegel, and stars both Raimi and Spiegel.  Raimi's first directorial work, it co-stars his frequent collaborator Bruce Campbell.

Sam Raimi: Samuel M "Sam" Raimi ( ; born October 23, 1959) is an American film director, producer, screenwriter and actor, famous for creating the cult horror "Evil Dead" series, as well as directing the original "Spider-Man" trilogy (2002–07), the 1990 superhero film "Darkman" and the "I Will Rip Your Soul Out" scene from the 2013 remake of "Evil Dead".  His most recent film is the 2013 Disney fantasy film "Oz the Great and Powerful".

Documentary News Letter: Documentary News Letter was a magazine about documentary film founded by filmmaker John Grierson.  The publication was developed as the wartime successor to "World Film News", which ceased publication in 1938, and sought to promote a "documentary approach to everyday living."  It published its first edition in January 1940, with an editorial board that consisted of Grierson, Paul Rotha, Basil Wright, Arthur Elton and Thomas Baird.

Darkman III: Die Darkman Die: Darkman III: Die Darkman Die is an American superhero action film.  It is the second sequel to Sam Raimi's "Darkman", and was released direct-to-video in 1996.  Like the , it was directed by Bradford May, a television director and cinematographer who also served as the director of photography.  Series creator Sam Raimi serves as an executive producer.

John Grierson: John Grierson CBE (26 April 1898 – 19 February 1972) was a pioneering Scottish documentary maker, often considered the father of British and Canadian documentary film.  In 1926, Grierson coined the term "documentary" in a review of Robert Flaherty's "Moana".

Sam Raimi's unrealized projects: The following is a list of unproduced Sam Raimi projects in roughly chronological order.  During his long career, American film director Sam Raimi has worked on a number of projects which never progressed beyond the pre-production stage under his direction.  Some of these projects, are officially cancelled and scrapped or fell in development hell.

Grierson Awards: The Grierson Awards celebrate innovative and exciting new documentary films.  The awards have been set up by the Grierson Trust to commemorate the life and work of world-renowned documentary filmmaker John Grierson.  The awards were first set up in 1972 and have run annually.  In 2000 the Grierson Trust forged a link with the UK Film Council in order to expand the awards and add more prestige to the awards.  The awards have grown in stature and recognition over the years and now are "more important (than ever).  They have an impressive list engaging with a broad palette of styles and subjects from disabled people looking for love to asylums, Russian billionaires and global warming."

Grant Curtis: Grant Curtis is a film producer, who has worked with director Sam Raimi on "The Gift", "Drag Me To Hell", the "Spider-Man" films and "Oz the Great and Powerful".  He grew up in the rural Missouri town of Warrensburg.  Curtis received a master's degree in Mass Communication in 1997 from the University of Central Missouri (UCM), formerly CMSU (located in the town of Warrensburg).  He wrote a thesis/screenplay entitled: "And God Stepped Aside".  The screenplay examines the relationship between a young man who reluctantly fulfills the dying wishes of his estranged grandmother by taking her to Paris, France.  The story was inspired by Curtis' own personal experiences with death within his family.  Not long after he completed his thesis/screenplay while he lived in Los Angeles, CA., Curtis' neighbor informed him that director Sam Raimi was looking for an assistant.  Curtis interviewed for the position, not entirely confident afterwards that his Missouri accent and demeanor, not to mention his limited practical experience, garnered Raimi's consideration.  After waiting many months, Curtis discovered that he got the job, and his journey towards success began.

John Grierson (Dominican): John Grierson or Grisson (died 1564?)  was a Scottish Dominican and perhaps a member of the family of Grierson of Lag in Dumfriesshire.

Supporting paragraphs: John Grierson Sam Raimi
Answer: film