Question: Spencer Gordon Bennet and Ralph Smart, have which occupations in common?

Context paragraphs:
Night Alarm: Night Alarm is a 1934 American drama film directed by Spencer Gordon Bennet and starring Bruce Cabot as a down on his luck reporter, Hal Ashby, who tries to make a name for himself by investigating a series of bizarre arson attacks.  The film, which was a hit in movie theatres at the time, is now widely available in the public domain.

The Bounty Killer (film): The Bounty Killer is a 1965 American Technicolor Western film directed by Spencer Gordon Bennet and written by Ruth Alexander and Leo Gordon in Techniscope.  The film stars Dan Duryea, Rod Cameron, Audrey Dalton, Richard Arlen, Buster Crabbe and Fuzzy Knight.  The film was released on July 31, 1965, by Embassy Pictures.

Across the Plains (1939 film): Across the Plains is a 1939 American Western film directed by Spencer Gordon Bennet and starring Addison Randall, Frank Yaconelli, and Joyce Bryant.  Written by Robert Emmett Tansey, the film is about two brothers who are separated when they are young and who meet again as adults, one good and one bad.

Brave Warrior: Brave Warrior is a 1952 Technicolor western film, directed by Spencer Gordon Bennet and starring Jon Hall and Christine Larsen.  The story is based on events of the War of 1812 and the Battle of Tippecanoe, but contains historical inaccuracies, mainly in that Tecumseh sided with the Americans and not the British.

The Atomic Submarine: The Atomic Submarine is a 1959 independently made American black-and-white science fiction film, produced by Alex Gordon, directed by Spencer Gordon Bennet, that stars Arthur Franz, Dick Foran, Brett Halsey and Joi Lansing, with John Hilliard as the voice of the alien.  The film was distributed by Allied Artists Pictures Corporation.

Avenging Waters: Avenging Waters is a 1936 western starring Ken Maynard, Beth Marion, Ward Bond and John Elliott.  It was written by Nat Gatzert and directed by Spencer Gordon Bennet.

Ralph Smart: Ralph Foster Smart {'1': ", '2': ", '3': ", '4': "} (27 August 1908 – 12 February 2001) was a film and television producer, director, and writer, born in England to Australian parents.

Spencer Gordon Bennet: Spencer Gordon Bennet (January 5, 1893 – October 8, 1987) was an American film producer and director.  Known as the "King of Serial Directors", he directed more film serials than any other director.

Requiem for a Gunfighter: Requiem for a Gunfighter is a 1965 American western film, the last picture directed by Spencer Gordon Bennet, produced by Alex Gordon, and starring Rod Cameron, Stephen McNally, Mike Mazurki, Dick Jones, and Olive Sturgess.

They Raid by Night: They Raid by Night is a 1942 American low-budget World War II film from Producers Releasing Corporation, directed by Spencer Gordon Bennet.

Supporting paragraphs: Spencer Gordon Bennet Ralph Smart
Answer: producer and director