Question: Murder in a Blue World starred which American businessman?

full_context: Document 1: Chris Gutierrez: Chris Gutierrez (born Christopher Juno Balbin on 9 May 1992) is a Filipino actor. He is a member of ABS-CBN's Star Magic Batch 13. He is a grandson of to two Philippine showbiz greats, Gloria Romero and Juancho Gutierrez.
Document 2: Jorge Grau: Jorge Grau (born Jorge Grau Solá, 27 October 1930) is a Spanish director, scriptwriter, playwright and painter. His 1965 film "Acteón" was entered into the 4th Moscow International Film Festival. In 1973, he directed "Ceremonia sangrienta" (a.k.a. "Legend of Blood Castle" and "The Female Butcher"), starring Ewa Aulin. In 1974, he directed the cult zombie film "The Living Dead at the Manchester Morgue" (a.k.a. "Let Sleeping Corpses Lie", a.k.a. "Don't Open the Window".)
Document 3: Murder in a Blue World: Una gota de sangre para morir amando (English: Murder in a Blue World ) is a 1973 Spanish/French film directed by Eloy de la Iglesia and starring Sue Lyon, Christopher Mitchum and Jean Sorel. Shot in English and set in the near future, the film is a crime thriller.
Document 4: Christopher Trumbo: Christopher Trumbo (September 25, 1940 – January 8, 2011) was an American television writer, screenwriter and playwright. Trumbo was considered an expert on the Hollywood blacklist during the McCarthy era. His father, screenwriter Dalton Trumbo, was blacklisted by Hollywood for nearly a decade for refusing to testify to Congress, as one of a group known as The Hollywood Ten.
Document 5: Blue Blood (1973 film): Blue Blood is a 1973 British horror film directed by Andrew Sinclair and starring Oliver Reed, Fiona Lewis and Derek Jacobi. It was based on the novel "The Carry-Cot" by Alexander Thynn. It was shot on location at Longleat House in Wiltshire.
Document 6: La morte ha fatto l'uovo: La morte ha fatto l'uovo, internationally released as Death Laid an Egg (aka A Curious Way To Love, Death Trap and Plucked), is a 1968 giallo film directed by Giulio Questi. Written by Questi and Franco Arcalli, the film stars Ewa Aulin, Gina Lollobrigida and Jean-Louis Trintignant.
Document 7: Chris Robinson (singer): Christopher Mark "Chris" Robinson (born December 20, 1966) is an American musician. He was the singer of the rock and roll band The Black Crowes and brother of its guitarist Rich Robinson.
Document 8: Christopher Mitchum: Christopher "Chris" Mitchum (born October 16, 1943), is an American film actor, screenwriter, and businessman. He was born in Los Angeles, California, the second son of film star legend Robert Mitchum and Dorothy Mitchum (both deceased). He is also the younger brother of actor James Mitchum.
Document 9: Blood Orange (film): Blood Orange released in the United States as Three Stops to Murder, is a 1953 British crime film directed by Terence Fisher. It stars Tom Conway and Mila Parély. A private eye investigating a jewel robbery at a London fashion house finds himself involved in a murder mystery. it's one of a handful of thrillers that Fisher made for Hammer Film Productions before he directed many of their early horror films in the late 1950s.
Document 10: Still Life (2014 film): Still Life, originally released in Argentina and Spain under the title Naturaleza muerta, is a Spanish language thriller film and the feature film directorial debut of Gabriel Grieco. The movie had its world premiere on 7 October 2014 at the Sitges Film Festival and stars Luz Cipriot as a journalist whose devotion to her craft has placed her life in danger. In 2013 an unfinished version of the film was one of two films that were given a "Bloody Work in Progress Award" by the Ventana Sur film festival, which secured distribution rights for DVD, VOD and pay tv for Mexican territory.
Document 11: Robert Mitchum filmography: Robert Mitchum was an American actor who was in over 110 films and TV series over the course of his career. He is ranked as #23 on the American Film Institute's list of the 50 greatest American screen legends of all time. His first credited named role was as Quinn in the 1943 film "Border Patrol". That same year he appeared in the films "Follow the Band", "Beyond the Last Frontier", "Cry 'Havoc'" and "Gung Ho!" as well as several Hopalong Cassidy films including "Colt Comrades", "Bar 20", "False Colors", and "Riders of the Deadline". In 1944, he starred in the western film "Nevada" as Jim Lacy aka Nevada and a year later in the film "West of the Pecos" as Pecos Smith. During the 1940s, he also cast in the films "Undercurrent" (1946), "Crossfire" (1947), "Out of the Past" (1947) and "The Big Steal" (1949).
Document 12: Flic Story: Flic Story French: "Il était une fois un flic" is a French crime thriller released on October 1, 1975, based on the autobiography of the same name written by French police detective Roger Borniche. Both film and book portray Borniche's nine-year pursuit of French gangster and murderer Emile Buisson, who was executed on February 28, 1956. Directed by Jacques Deray, the film stars Alain Delon and Jean-Louis Trintignant as Borniche and Buisson respectively, supported by Claudine Auger and André Pousse.
Document 13: Chris Weitz: Christopher John "Chris" Weitz (born November 30, 1969) is an American film producer, screenwriter, author, occasional actor, and film director. He is the brother of filmmaker Paul Weitz. He is best known for his work with his brother on the comedy films "American Pie" and "About a Boy," the latter of which was Oscar-nominated for adapted screenplay. Weitz directed the film adaptation of the novel "The Golden Compass" and the of "New Moon" from the series of "Twilight" books, as well wrote the screenplay for Disney's 2015 live-action adaptation of "Cinderella" and co-wrote "Rogue One: A Star Wars Story" alongside with Tony Gilroy.
Document 14: Chris Spheeris: Chris Spheeris (in Greek: Χρήστος Σφυρής) is a Greek-American composer of instrumental music. He is a producer, vocalist and multi-instrumentalist. Chris is the cousin of Penelope Spheeris and her brother Jimmie Spheeris. Born in Milwaukee, Wisconsin, Chris began writing songs on his guitar as a teenager. In 1985, Chris began composing for film. His work in collaboration with filmmaker Chip Duncan includes the television series Is Anyone Listening, the series Mystic Lands (Discovery Networks), In A Just World (PBS) and the classroom production entitled The Life & Death of Glaciers (Discovery Education).
Document 15: The Blue Gardenia: The Blue Gardenia is a 1953 film noir crime film directed by Fritz Lang and based on a story by Vera Caspary. It stars Anne Baxter, Richard Conte and Ann Sothern. The first installment of Lang's "newspaper noir" movie trio — with "While the City Sleeps" and "Beyond a Reasonable Doubt" (both 1956) — "The Blue Gardenia" offers a somewhat negative look at newspaper coverage of a sensational murder case. The theme song was written by Bob Russell and Lester Lee and arranged by Nelson Riddle. The director of cinematography was one of RKO Radio Pictures' regulars Nicholas Musuraca, then working at Warner Brothers.
ground_truth: Christopher "Chris" Mitchum