Question: Who was the director of the 1950 MGM musical film, choreographed by Eugene Loring, in which the actor who played Palmer Cortlandt on the soap opera "All My Children" starred?

Context articles: The Toast of New Orleans
Guy and Madeline on a Park Bench
Good News (1947 film)
Deep in My Heart (1954 film)
James Mitchell (actor)
Umar Lubis
Nina Cortlandt
Palmer Cortlandt
Billy the Kid (ballet)
Cabin in the Sky (film)

The Toast of New Orleans is a 1950 MGM musical film directed by Norman Taurog and choreographed by Eugene Loring.
 It starred Mario Lanza, Kathryn Grayson, David Niven, J. Carrol Naish, James Mitchell and a teenaged Rita Moreno.
 The film was made in the wake of "That Midnight Kiss", Lanza's successful film debut, as an opportunity for Lanza to sing on the big screen again.
Guy and Madeline on a Park Bench is a 2009 American black-and-white jazz musical film directed, written, produced, shot, and co-edited by Damien Chazelle, that recasts the MGM musical tradition in a gritty, vérité style.
 It stars Jason Palmer, Desiree Garcia and Sandha Khin.
 The film features a unique mixture of live jazz performances and choreographed tap dancing, as well as several more traditional musical numbers.
Good News is a 1947 American MGM musical film based on the 1927 stage production of the same name.
 It starred June Allyson, Peter Lawford, Mel Tormé, and Joan McCracken.
 The screenplay by Betty Comden and Adolph Green was directed by Charles Walters in Technicolor.
Deep in My Heart is a 1954 MGM biographical musical film about the life of operetta composer Sigmund Romberg, who wrote the music for "The Student Prince", "The Desert Song", and "The New Moon", among others.
 Leonard Spigelgass adapted the film from Elliott Arnold's 1949 biography of the same name.
 Roger Edens produced, Stanley Donen directed and Eugene Loring choreographed.
 José Ferrer played Romberg, with support from soprano Helen Traubel as a fictional character and Merle Oberon as lyricist Dorothy Donnelly.
James Mitchell (February 29, 1920 – January 22, 2010) was an American actor and dancer.
 Although he is best known to television audiences as Palmer Cortlandt on the soap opera "All My Children" (1979–2010), theatre and dance historians remember him as one of Agnes de Mille's leading dancers.
 Mitchell's skill at combining dance and acting was considered something of a novelty; in 1959, the critic Olga Maynard singled him out as "an important example of the new dancer-actor-singer in American ballet", pointing to his interpretive abilities and "masculine" technique.
Umar Lubis is an Indonesian actor.
 He is known for his numerous roles in soap operas.
 He always role in SinemArt soap opera.
 Usually he always role as father in soap opera.
 He is son in-law from Rae Sita.
 His name started to be known by public when he play in soap opera Intan.
 In that soap opera, he roled as Dr. Frans, father of Lila who is roled by Ingka Noverita.
Nina Cortlandt is a fictional character and one half of the Cliff and Nina supercouple on the long running ABC soap opera, "All My Children".
 She has been most notably played by Taylor Miller who exited the role in 1996.
 Miller returned for a special cameo in 2010, following the death of her father Palmer Cortlandt.
Palmer Cortlandt is a fictional character on the long-running ABC soap opera "All My Children", played by James Mitchell from 1979 to 2010.
 A major character until 2002, when health issues forced him to reduce his work load, Mitchell continued to appear regularly on the show through May 2007.
 Mitchell appeared in a handful of episodes throughout 2008, last appearing on September 19, 2008.
 Mitchell retired from acting in 2009 but made a final on air cameo appearance as Palmer Cortlandt on January 5, 2010 to celebrate the show's 40th anniversary.
Billy the Kid is a 1938 ballet written by the American composer Aaron Copland on commission from Lincoln Kirstein.
 It was choreographed by Eugene Loring for Ballet Caravan.
 Along with "Rodeo" and "Appalachian Spring", it is one of Copland's most popular and widely performed pieces.
 The ballet is most famous for its incorporation of several cowboy tunes and American folk songs and, although built around the figure and the exploits of Billy the Kid, is not so much a biography of a notorious but peculiarly appealing desperado as it is a perception of the pioneer West, in which a figure such as Billy played a vivid role.
Cabin in the Sky is a 1943 American musical film based on the 1940 stage musical of the same name.
 Directed by Vincente Minnelli, the film stars Ethel Waters and Rex Ingram, who reprised their roles from the Broadway production, as well Eddie 'Rochester' Anderson and Lena Horne.
 It was Horne's first and only leading role in an MGM musical.
 Louis Armstrong was also featured in the film as one of Lucifer Junior's minions, and Duke Ellington and his Orchestra have a showcase musical number in the film.