Sergio Leone (] ; 3 January 1929 – 30 April 1989) was an Italian film director, producer and screenwriter, credited as the inventor of the "Spaghetti Western" genre.
Christophe Gans (born 11 March 1960) is a French film director, producer and screenwriter, who specializes in horror and fantasy movies.
Once Upon a Time in the West ( ) is a 1968 epic Spaghetti Western film co-written and directed by Sergio Leone.
 It stars Henry Fonda, cast against type, as the villain, Charles Bronson as his nemesis, Claudia Cardinale as a newly widowed homesteader, and Jason Robards as a bandit.
 The screenplay was written by Sergio Donati and Leone, from a story by Dario Argento, Bernardo Bertolucci and Leone.
 The widescreen cinematography was by Tonino Delli Colli, and the acclaimed film score was by Ennio Morricone.
Gonzalo Gavira (October 30, 1925 – January 9, 2005) was a Mexican movie sound technician.
 He formed part of the team that won an Oscar for the movie "The Exorcist" in 1973.
 Outside of Mexico he worked on more than 60 other films, including the disaster movie "The Towering Inferno" and western "El Topo", as well as Sergio Leone's "The Good, The Bad, And The Ugly".
 While working in the United States he always worked with an assistant named Ruben C. Bustamante, Mr. Gavira referred to him as invaluable.
 In 1975 he was awarded the Silver Ariel, which is the highest award that can be received from Mexican theatre.
 He died in 2005, reportedly from circulation problems.
 Along with working together with director Sergio Leone, Gonzalo Gavira worked with William Friedkin, Alejandro Jodorosky (The Holy Mountain) and the great Cantinflas, who on many occasions classified Mr. Gavira as a genius.
 Once upon meeting Lee Marvin, Gonzalo Gavira asked Mr. Marvin to autograph a twenty dollar bill.
 Lee Marvin refused, stating he would rather use that twenty to buy some drinks later, they became fast friends.
 Mr. Gonzalo Gavira worked on approximately 80% of all movie features made in Mexico.
 "Letters from Marusia" was nominated for Best Foreign Film at the 1976 Oscars and "Canoa" won Picture of the Year 1976 in Mexico City.
H.P. Lovecraft's: Necronomicon, original title Necronomicon, also called Necronomicon: Book of the Dead or Necronomicon: To Hell and Back is an American anthology horror film released in 1993.
 It was directed by Brian Yuzna, Christophe Gans and Shusuke Kaneko and was written by Gans, Yuzna, Brent V. Friedman, and Kazunori Itō.
 The film stars Bruce Payne as Edward De Lapoer, Richard Lynch as Jethro De Lapoer, Jeffrey Combs as H. P. Lovecraft, Belinda Bauer as Nancy Gallmore, and David Warner as Dr. Madden.
Beauty and the Beast (French: La Belle et la Bête ) is a 2014 Franco-German romantic fantasy film based on the traditional fairy tale of the same name by Gabrielle-Suzanne Barbot de Villeneuve.
 Written by Christophe Gans and Sandra Vo-Anh and directed by Gans, the film stars Léa Seydoux as Belle and Vincent Cassel as the Beast.
The Good, the Bad and the Ugly (Italian: "Il buono, il brutto, il cattivo" ,  "The good, the ugly, the bad" ) is a 1966 epic Spaghetti Western film directed by Sergio Leone and starring Clint Eastwood, Lee Van Cleef, and Eli Wallach in their respective title roles.
 Its screenplay was written by Age & Scarpelli, Luciano Vincenzoni and Leone (with additional screenplay material and dialogue provided by an uncredited Sergio Donati), based on a story by Vincenzoni and Leone.
 Director of photography Tonino Delli Colli was responsible for the film's sweeping widescreen cinematography, and Ennio Morricone composed the film's score including its main theme.
 It was an international co-production between Italy, Spain, West Germany and the United States.
Brotherhood of the Wolf (French: Le Pacte des loups ) is a 2001 French historical action horror film directed by Christophe Gans, co-written by Gans and Stéphane Cabel, and starring Samuel Le Bihan, Mark Dacascos, Émilie Dequenne, Monica Bellucci and Vincent Cassel.
Silent Hill is a 2006 horror film directed by Christophe Gans and written by Roger Avary, Gans, and Nicolas Boukhrief.
 The film is an adaptation of Konami's video game series "Silent Hill".
 It stars Radha Mitchell, Sean Bean, Laurie Holden, Deborah Kara Unger, Kim Coates, Tanya Allen, Alice Krige, and Jodelle Ferland.
Brian Yuzna (born August 30, 1949) is a cult producer, director, and writer, known for "Honey, I Shrunk the Kids", "Bride of Re-Animator" and "Beyond Re-Animator" who has been active within the independent horror genre for over thirty years.
 He is widely known as the producer behind "Re-Animator", as well as being the first American filmmaker to adapt a manga into a live-action feature.
 He has helmed several adaptations of the work of H. P. Lovecraft, and has assisted many first time directors, including Stuart Gordon, Christophe Gans and Luis De La Madrid, in getting their projects made.

Question: Who was born earlier, Sergio Leone or Christophe Gans?
Answer: Sergio Leone