Question: Which Writer started his own film studio, Gary King or Ivan Tors?

Context articles: Gog (film)
Daring Game
Rhino!
Escape from Angola
William Grefe
Ivan Tors
Gary King (director)
Tyler Morris
The Magnetic Monster
Zebra in the Kitchen

Gog is a 1954 independently made American science fiction film in Eastmancolor, produced by Ivan Tors, directed by Herbert L. Strock, that stars Richard Egan, Constance Dowling (in her final big-screen role), and Herbert Marshall.
 "Gog" was produced by Ivan Tors Productions and was filmed in Natural Vision 3D, Color Corporation of America color, and widescreen.
 The film was distributed by United Artists Corp.
Daring Game is a 1968 drama film starring Lloyd Bridges and Nico Minardos filmed at the Ivan Tors studio in Miami and in the Bahamas.
 The working title was "The Unkillables".
Rhino!
 is a 1964 American action film directed by Ivan Tors and written by Art Arthur and Arthur Weiss.
 The film stars Harry Guardino, Shirley Eaton, Robert Culp, Harry Makela and George Korelin.
 The film was released on May 20, 1964, by Metro-Goldwyn-Mayer.
Escape from Angola is a 1976 adventure film directed by Leslie H. Martinson.
 It stars Stan Brock and Anne Collings and was co-produced by Ivan Tors whose children act in the film with Ivan making a cameo appearance.
William Grefe (born 1930) is a writer and director of films, best known for his work in the exploitation field.
 For most of his career he has worked in Florida.
 He also worked for a number of years with Ivan Tors.
Ivan Tors (born Iván Törzs; June 12, 1916  in Budapest, Hungary– June 4, 1983 in the Brazilian state of Mato Grosso) was a Hungarian playwright, film director, screenwriter, and film and television producer with an emphasis on non-violent but exciting science fiction, underwater sequences, and stories involving animals.
 He started a Miami-based film studio now known as Greenwich Studios, and later a music company.
Gary R. King (born November 15, 1972) is an American director and writer.
Tyler Drew Morris is an American professional guitar player who was born in Boston, Massachusetts.
 Morris has performed with Yngwie Malmsteen, Steve Vai, Gary Hoey, Joe Stump, Sammy Hagar, Leslie West, Rudy Sarzo, Vince Neil, Joe Vitale, Johnny Winter, James Montgomery, David Hull, Phil Collen, Fred Coury, Robert Marcello, Kip Winger, AJ Pappas, Jimi Bell, Gary King, George Lynch, Bruce Kulick, Jason Becker, Vernon Reid, Jeff "Skunk" Baxter, Ronnie Montrose and others.
 Morris does demonstrations for Fishman Electronics, Dean Guitars, and REVV Amplification among other companies at the annual summer and winter NAMM shows.
 At the age of 15, Morris wrote his first studio album, "And So It Begins".
 This album was later featured in "Guitar Player Magazine", "Vintage Guitar Magazine", "Heavy Riff Magazine", Korea Guitar, and other worldwide media outlets.
 He has performed at venues including Mechanic's Hall, The Larcom Theater, Tupelo Music Hall, The House of Blues in Los Angeles, B. B. King's Blues Club in New York City and in West Palm Beach, The Miami Beach Bandshell, The Regent Theater, The Cutting Room, The Hard Rock Cafe and many other venues all across the United States.
The Magnetic Monster is a 1953 independently made American black-and-white science fiction film, produced by Ivan Tors and George Van Marter, directed by Curt Siodmak and (uncredited) Herbert L. Strock, that stars Richard Carlson, King Donovan, and Jean Byron.
 The film was released by United Artists.
Zebra in the Kitchen is a 1965 American children's film produced and directed by Ivan Tors and starring Jay North in his first leading feature film role.
 It also stars Martin Milner and Andy Devine, with co-stars Joyce Meadows and Jim Davis.
 The film tells the story of a boy who, when forced to give his pet mountain lion to the local zoo, becomes upset at the living conditions of the animals there and attempts to free them.
 Originally released by MGM as a children's matinee feature, the film has subsequently been released on home video by Warner Bros.' family entertainment division.