Question: Are Howard Hughes and Gregory Ratoff both film directors?

Context articles: Song of Russia
Irish Eyes Are Smiling
Gregory Ratoff
Hughes XF-11
The Amazing Howard Hughes
George White's Scandals (1934 film)
Intermezzo (1939 film)
Symphony of Six Million
Howard Hughes Corporation
Howard Hughes

Song of Russia is a 1944 American war film made and distributed by Metro-Goldwyn-Mayer.
 The picture was credited as being directed by Gregory Ratoff, though Ratoff collapsed near the end of the five-month production, and was replaced by László Benedek, who completed principal photography; the credited screenwriters were Paul Jarrico and Richard J. Collins.
 The film stars Robert Taylor, Susan Peters, and Robert Benchley.
Irish Eyes Are Smiling is a 1944 musical film which chronicles the life of popular Irish song composer Ernest R. Ball.
 The screenplay by Earl Baldwin and John Tucker Battle is based on a story by E. A. Ellington.
 The film was directed by Gregory Ratoff and produced by Damon Runyon for 20th Century Fox.
 The film was nominated for the Academy Award for Best Original Score in 1944.
Gregory Ratoff (c. April 20, 1893 – December 14, 1960) was a Russian-born American film director, actor and producer.
 His most famous role as an actor was as producer Max Fabian in "All About Eve" (1950).
The Hughes XF-11 was a prototype military reconnaissance aircraft, designed and flown by Howard Hughes and built by Hughes Aircraft for the United States Army Air Forces.
 Although 100 F-11s were ordered in 1943, only two prototypes and a mockup were completed.
 During the first XF-11 flight in 1946, Howard Hughes crashed the aircraft in Beverly Hills, California.
 The production aircraft had been cancelled in May 1945, but the second prototype was completed and successfully flown in 1947.
 The program was extremely controversial from the beginning, leading the U.S. Senate to investigate the F-11 and the Hughes H-4 Hercules flying boat in 1947–1948.
The Amazing Howard Hughes is a 1977 American made-for-television biographical film about American aviation pioneer and filmmaker Howard Hughes, based on the book "Howard: The Amazing Mr. Hughes" by Hughes' business partner Noah Dietrich.
 The film starred Tommy Lee Jones, Ed Flanders, and Tovah Feldshuh and was made a year after Hughes's death, in 1976, while aboard a private flight to Mexico.
 It was originally broadcast in two parts on CBS on April 13 and 14, 1977.
George White's Scandals is a 1934 American musical film directed by George White and written by Jack Yellen.
 The film stars Rudy Vallée, Jimmy Durante, Alice Faye, Adrienne Ames, Gregory Ratoff, Cliff Edwards and Dixie Dunbar.
 The film was released on March 16, 1934, by Fox Film Corporation.
Intermezzo (also called Intermezzo: A Love Story) (1939) is a romantic film made in the USA by Selznick International Pictures and nominated for two Academy Awards.
 It was directed by Gregory Ratoff and produced by David O. Selznick.
 It is a remake of the Swedish film "Intermezzo" (1936) and features multiple orchestrations of the Heinz Provost's piece of the same name, which won a contest associated with the original film's production.
 The screenplay by George O'Neil was based on the screenplay of the original film by Gösta Stevens and Gustaf Molander.
 The scoring by Lou Forbes was nominated for an Academy Award, and music credit was given to Robert Russell Bennett, Max Steiner, Heinz Provost, and Christian Sinding.
 The cinematography by Gregg Toland who replaced Harry Stradling was also nominated for an Academy Award.
Symphony of Six Million is a 1932 American Pre-Code film directed by Gregory La Cava and starring Ricardo Cortez, Irene Dunne and Gregory Ratoff.
 Based on the story "Night Bell" by Fannie Hurst, the movie concerns the rise of a Jewish physician from humble roots to the top of his profession and the social costs of losing his connection with his community, his family and with the craft of healing.
The Howard Hughes Corporation () is a major real estate development and management company based in Dallas, Texas.
 It began as part of the oil drilling tool business founded by Howard R. Hughes, Sr., in 1913, which under his son Howard Hughes, Jr., diversified into real estate development.
 The real estate operations became a separate company, which was acquired by The Rouse Company, which in turn was acquired by General Growth Properties (GGP).
 In 2010, GGP formed The Howard Hughes Corporation as a separate company.
Howard Robard Hughes Jr. (December 24, 1905 – April 5, 1976) was an American businessman, investor, pilot, film director, and philanthropist, known during his lifetime as one of the most financially successful individuals in the world.
 He first made a name for himself as a film producer, and then became an influential figure in the aviation industry.
 Later in life, he became known for his eccentric behavior and reclusive lifestyle—oddities that were caused in part by a worsening obsessive–compulsive disorder (OCD) and chronic pain from a plane crash.