Question: Are René Laloux and Preston Sturges both American?

Context paragraphs:
John Sturges: John Eliot Sturges ( ; January 3, 1910 – August 18, 1992) was an American film director.  His movies include "Bad Day at Black Rock" (1955), "Gunfight at the O.K. Corral" (1957), "The Magnificent Seven" (1960), "The Great Escape" (1963), and "Ice Station Zebra" (1968).  In 2013, "The Magnificent Seven" was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".  He was not related to director Preston Sturges.

Easy Living (1937 film): Easy Living (1937) is an American screwball comedy film, directed by Mitchell Leisen, written by Preston Sturges from a story by Vera Caspary, and starring Jean Arthur, Edward Arnold, and Ray Milland.  Many of the supporting players (William Demarest, Franklin Pangborn, Luis Alberni, Robert Greig, Olaf Hytten, and Arthur Hoyt) became a major part of Sturges' regular stock company of character actors in his subsequent films.

The Great McGinty: The Great McGinty is a 1940 political satire comedy film written and directed by Preston Sturges, starring Brian Donlevy and Akim Tamiroff and featuring William Demarest and (in her final screen appearance) Muriel Angelus.  It was Sturges's first film as a director; he sold the story to Paramount Pictures for just $10 on condition he direct the film.  Sturges went on to win the Academy Award for Writing Original Screenplay.

The Power and the Glory (1933 film): The Power and the Glory is a 1933 Pre-Code film starring Spencer Tracy and Colleen Moore, written by Preston Sturges, and directed by William K. Howard.  The picture's screenplay was Sturges' first script, which he delivered complete in the form of a finished shooting script, for which he received $17,500 ($ today) and a percentage of the profits.  Profit-sharing arrangements, now a common practice in Hollywood, were then unusual and gained Sturges much attention.

The Great Moment (1944 film): The Great Moment is a 1944 biographical film written and directed by Preston Sturges.  Based on the book "Triumph Over Pain" (1940) by René Fülöp-Miller, it tells the story of Dr. William Thomas Green Morton, a 19th-century Boston dentist who discovered the use of ether for general anesthesia.  The film stars Joel McCrea and Betty Field, and features Harry Carey, William Demarest, Franklin Pangborn and Porter Hall.

René Laloux: René Laloux (July 13, 1929 – March 14, 2004) was a French animator and film director.

Unfaithfully Yours (1948 film): Unfaithfully Yours is a 1948 American screwball black comedy written and directed by Preston Sturges and starring Rex Harrison, Linda Darnell, Rudy Vallée and Barbara Lawrence.  The film is about a man's failed attempt to murder his wife, whom he believes has been unfaithful to him.  Although the film, which was the first of two Sturges made for Twentieth Century-Fox, received mostly positive reviews, it was not successful at the box office.

Remember the Night: Remember the Night is a 1940 American romantic comedy, Christmas film, and trial film directed by Mitchell Leisen, and starring Barbara Stanwyck and Fred MacMurray.  The film was written by the great comic screenwriter Preston Sturges, and it was the last of his scripts shot by another director, as Sturges began his own directorial career the same year with "The Great McGinty".

Fantastic Planet: Fantastic Planet (French: La Planète sauvage , Czech: Divoká planeta , lit.  "The Wild Planet") is a 1973 animated science fiction film directed by René Laloux and written by Laloux and Roland Topor.  Topor also completed the film's production design and it was animated at Jiří Trnka Studio in Prague.  The film was an international co-production between companies from France and Czechoslovakia.  The allegorical story, about humans living on a strange planet dominated by giant humanoid aliens who consider them animals, is based on the 1957 novel "Oms en série" by French writer Stefan Wul.

Preston Sturges: Preston Sturges ( ; born Edmund Preston Biden; August 29, 1898 – August 6, 1959) was an American playwright, screenwriter, and film director.  In 1941, he won the Academy Award for Best Original Screenplay for the film "The Great McGinty", his first of three nominations in the category.

Supporting paragraphs: René Laloux Preston Sturges
Answer: no