Question: Which film has the director who is older than the other, Trois Milliards Sans Ascenseur or Four Flies On Grey Velvet? 

Ben Palmer
Ben Palmer is a British film and television director who is known for being the director of" Bo' Selecta" and" The Inbetweeners".
The Cat o' Nine Tails
The Cat o' Nine Tails is a 1971" giallo" film written and directed by Dario Argento, adapted from a story by Dardano Sacchetti, Luigi Cozzi, and an uncredited Bryan Edgar Wallace.
It stars Karl Malden, James Franciscus, and Catherine Spaak.
Although it is the middle entry in Argento's so- called" Animal Trilogy"( along with" The Bird with the Crystal Plumage" and" Four Flies on Grey Velvet"), the titular" cat o' nine tails" does not directly refer to a literal cat, nor to a literal multi-tailed whip; rather, it refers to the number of leads that the protagonists follow in the attempt to solve a murder.
Though successful in Europe, it was dismissed in the United States.
Argento admitted in the book" Broken Mirrors, Broken Minds: The Dark Dreams of Dario Argento" that he was less than pleased with the film, and has repeatedly cited it as his least favorite of all of his films.
The Bird with the Crystal Plumage
The Bird with the Crystal Plumage is a 1970 giallo film directed by Dario Argento, in his directorial debut.
The film has been credited with popularizing the Italian giallo genre.
It is the first installment in the" Animal Trilogy", and was followed by" The Cat o' Nine Tails"( 1971) and" Four Flies on Grey Velvet"( 1972).
Written by Argento, the film borrowed liberally from Fredric Brown's novel" The Screaming Mimi", which had previously been made into a Hollywood film," Screaming Mimi"( 1958), directed by Gerd Oswald.
The film was nominated for an Edgar Allan Poe award for best motion picture in 1971.
The film was originally cut by 20 seconds for its US release and received a' GP' rating, though it was later re-classified as' PG'.
It has since been released in the US uncut.
Upon it s release the film was a huge box office hit, grossing 1,650,000,000 Italian lira( roughly about$ 1 million US), twice the production cost of$ 500,000.
The film was also a success outside of Italy, gaining € 1,366,884 admissions in Spain.
Dario Argento
Dario Argento( born 7 September 1940) is an Italian film director, producer, film critic and screenwriter.
He is best known for his work in the horror film genre during the 1970s and 1980s, particularly in the subgenre known as" giallo"; the influence of his work on modern horror films has led him to being referred to as the" Master of the Thrill" and the" Master of Horror".
His most notable films as director are the" Animal Trilogy", consisting of" The Bird with the Crystal Plumage"( 1969)," The Cat o' Nine Tails"( 1971) and" Four Flies on Grey Velvet"( 1972); the" Three Mothers" trilogy, consisting of" Suspiria"( 1977)," Inferno"( 1980) and" The Mother of Tears"( 2007); and the standalone films" Deep Red"( 1975)," Tenebrae"( 1982)," Phenomena"( 1985), and" Opera"( 1987).
He also co-wrote the screenplay for Sergio Leone's" Once Upon a Time in the West"( 1968) and served as George A. Romero's script consultant on" Dawn of the Dead"( 1978), of which he also composed the soundtrack with his long- time collaborators Goblin.
Trois milliards sans ascenseur
Trois milliards sans ascenseur is a 1972 French- Italian film, directed by Roger Pigaut.
It stars actor Gabriele Ferzetti.
Roger Pigaut
Roger Pigaut (birth name Roger Paul Louis Pigot) (8 April 1919 – 24 December 1989) was a French actor and film director.
He appeared in 40 films between 1943 and 1980.
Elliot Silverstein
Elliot Silverstein( born August 3, 1927, in Boston, Massachusetts) is an American director, who is best known for being the director of the movie" Cat Ballou"( 1965).
Imago Mortis
Imago Mortis is a 2009 Italian- Spanish film directed by Stefano Bessoni.
The supernatural thriller stars Geraldine Chaplin and is the first major screen appearance of her daughter, Oona.
Richard Stanley, one of the film's scriptwriters described the film as a" Sort of a neo-" giallo" taking off from Dario Argento's" Four Flies on Grey Velvet" by way of Umberto Lenzi's" Spasmo" and" DaVinci Code Speaking about his hopes for the film, Bessoni said; “ My film aspires to del revive fantasy cinema, as is happening in Spain ”.
It was released in Italy on 16 January 2009.
Four Flies on Grey Velvet
Four Flies on Grey Velvet( Italian: 4 mosche di velluto grigio) is a 1971 Italian giallo film written and directed by Dario Argento, from a story by Luigi Cozzi( who also served as assistant director).
The film is the third in director Argento's" Animal Trilogy", having been preceded by" The Bird with the Crystal Plumage"( 1970) and" The Cat o' Nine Tails"( 1971).
Gildo Di Marco
Gildo Di Marco( born 20 January 1946) is an Italian actor.
He played Garullo along Fulvio Mingozzi, Werner Peters, Reggie Nalder and Suzy Kendall in" L'uccello dalle piume di cristallo"( 1970), by Dario Argento, postman in" Four Flies on Grey Velvet"( 1971), and Desiderio in" Mala tempora", by Stefano Amadio.
He appeared in Spaghetti Western films such as" Arizona Colt Returns"( 1970) by Sergio Martino, and" Bullet for a Stranger"( 1971) by Anthony Ascott.
He also appeared in the TV series" Door into Darkness".

Answer: Trois Milliards Sans Ascenseur