Circle of Danger is a 1951 British thriller film directed by Jacques Tourneur which stars Ray Milland, Patricia Roc and Naunton Wayne.
 An American travels to England to discover the truth behind his brother's death during the Second World War.
 It was based on a novel by Philip MacDonald.
The Wilby Conspiracy is a 1975 DeLuxe Color thriller film directed by Ralph Nelson and filmed in Kenya.
 It was written by Rodney Amateau, based on the 1972 novel by Peter Driscoll.
 It had a limited release in the US.
 This is the third film teaming Sidney Poitier with director Ralph Nelson.
 The first time they worked together was in 1963 on "Lilies of the Field", the film for which Poitier received an Academy Award.
 Nelson also directed Poitier in "Duel at Diablo" in 1966.
Timbuktu is a 1959 American black-and-white adventure film set in Timbuktu (Africa) but filmed in the Coral Pink Sand Dunes State Park in Kanab, Utah.
 It was directed by Jacques Tourneur in 1958.
Jacques Tourneur (] ; November 12, 1904 – December 19, 1977) was a French film director known for the classic film noir "Out of the Past" and a series of low-budget horror films he made for RKO Studios, including "Cat People", "I Walked with a Zombie" and "The Leopard Man".
 He is also known for directing "Night of the Demon", that was released by Columbia Pictures.
Way of a Gaucho is a 1952 American western film directed by Jacques Tourneur and starring Gene Tierney, Rory Calhoun and Richard Boone.
 It was scripted by Philip Dunne and based on a novel by Herbert Childs.
Romance of Radium is a 1937 American short film directed by Jacques Tourneur, and released by Metro-Goldwyn-Mayer.
 In 1937, it was nominated for an Academy Award for Best Short Subject (One-Reel) at the 10th Academy Awards.
Georges Benoît (1883–1942) was a French cinematographer who worked on more than sixty films during his career.
 During the silent era, he was employed mostly in Hollywood.
 Later he worked in his native France on films such as Jacques Tourneur's "Departure" (1931).
 Between 1929 and 1934 he appeared in approximately ten films as an actor.
Ralph Nelson (August 12, 1916 – December 21, 1987) was an American film and television director, producer, writer, and actor.
 He was best known for directing the Oscar winning films "Lilies of the Field" (1963), "Father Goose" (1964), and "Charly" (1968).
The Leopard Man is a 1943 horror film directed by Jacques Tourneur based on the book "Black Alibi" by Cornell Woolrich.
 It is one of the first American films to attempt an even remotely realistic portrayal of a serial killer (although that term was yet to be used).
Duel at Diablo is a 1966 western film starring James Garner in his first Western since leaving "Maverick" and Sidney Poitier in his first Western.
 Based on Marvin H. Albert's 1957 novel "Apache Rising", the film was written by Albert and Michael M. Grilikhes and directed by Ralph Nelson who had directed Poitier in "Lilies of the Field".
 The supporting cast includes Bibi Andersson, Bill Travers, Dennis Weaver and John Hoyt; Ralph Nelson has a cameo as an Army Major.
 The movie was shot on location amidst striking scenery in Utah; the musical score was composed by Neal Hefti.

Question: Which director won more Oscar awards, Jacques Tourneur or Ralph Nelson?
Answer: Ralph Nelson