Question: Warren Beatty and William Dieterle, are American?

full_context: Document 1: William Desmond Taylor: William Desmond Taylor (26 April 1872 – 1 February 1922) was an Irish-born American director and actor. He was a popular figure in the growing Hollywood motion-picture colony of the 1910s and early 1920s, having directed 59 silent films between 1914 and 1922 and acted in 27 between 1913 and 1915.
Document 2: Reds (film): Reds is a 1981 American epic drama film co-written, produced, and directed by Warren Beatty. The picture centers on the life and career of John Reed, the journalist and writer who chronicled the Russian Revolution in his book "Ten Days That Shook the World". Beatty stars in the lead role alongside Diane Keaton as Louise Bryant and Jack Nicholson as Eugene O'Neill.
Document 3: William A. Wellman: William Augustus Wellman (February 29, 1896 – December 9, 1975) was an American film director notable for his work in crime, adventure and action genre films, often focusing on aviation themes, a particular passion. He also directed several well-regarded satirical comedies. Beginning his film career as an actor, he went on to direct over 80 films, at times co-credited as producer and consultant. In 1927, Wellman directed "Wings", which became the first film to win an Academy Award for Best Picture at the 1st Academy Awards ceremony.
Document 4: Barry Levinson: Barry Levinson (born April 6, 1942) is an American filmmaker, screenwriter, and actor. Levinson's best-known works are comedy-drama and drama films such as "Diner" (1982), "The Natural" (1984), "Good Morning, Vietnam" (1987), "Bugsy" (1991), and "Wag the Dog" (1997). He won the Academy Award for Best Director for "Rain Man" (1988) which also won the Academy Award for Best Picture.
Document 5: Dustin Hoffman: Dustin Lee Hoffman (born August 8, 1937) is an American actor and a director, with a career in film, television, and theatre since 1960. Hoffman has been known for his versatile portrayals of antiheroes and vulnerable characters. He won the Academy Award for Best Actor in 1980 for "Kramer vs. Kramer", and in 1989 for "Rain Man".
Document 6: Al Pacino: Alfredo James Pacino ( ; born April 25, 1940) is an American actor of stage and screen, filmmaker, and screenwriter. Pacino has had a career spanning over five decades, during which time he has received numerous accolades and honors both competitive and honorary, among them an Academy Award, two Tony Awards, two Primetime Emmy Awards, a British Academy Film Award, four Golden Globe Awards, the Lifetime Achievement Award from the American Film Institute, the Golden Globe Cecil B. DeMille Award, and the National Medal of Arts. He is also one of few performers to have won a competitive Oscar, an Emmy and a Tony Award for acting, dubbed the "Triple Crown of Acting".
Document 7: George A. Williams (actor): George A. Williams (August 11, 1854 – February 21, 1936), sometimes known as "G.A. Williams" or simply as George Williams, was an American actor of the silent film era. Born in 1854 in Kinnickinnic, Wisconsin, he broke into the film industry in 1914. He worked mostly in film shorts, appearing in well over 100 of them in his 14-year career. He would also perform in approximately 20 feature-length films during this span. His first film appearance was in the film short, "In the Days of Witchcraft" (1913), and he would make his feature debut in 1916's "The Dumb Girl of Portici", directed by Lois Weber. 1914 would see him appear in several episodes of the serial, "The Hazards of Helen". In 1922, he would be cast as one of the leads in the serial, "In the Days of Buffalo Bill", directed by Edward Laemmle. His final film appearance would be in the 1926 silent film, "The Winner", directed by Harry J. Brown
Document 8: Robert Altman: Robert Bernard Altman ( ; February 20, 1925 – November 20, 2006) was an American film director, screenwriter, and film producer. A five-time nominee of the Academy Award for Best Director and an enduring figure from the New Hollywood era, Altman was considered a "maverick" in making films with a highly naturalistic but stylized and satirical aesthetic, unlike most Hollywood films. He is consistently ranked as one of the greatest and most influential filmmakers in American cinema.
Document 9: Man by the Wayside: Man by the Wayside (German: Der Mensch am Wege) is a 1923 German silent drama film directed by William Dieterle and starring Alexander Granach, Emilia Unda and Dieterle.
Document 10: Billy Wilder: Samuel "Billy" Wilder ( ; ] ; June 22, 1906March 27, 2002) was an Austrian-American filmmaker, screenwriter, producer, artist, and journalist whose career spanned more than five decades. He is regarded as one of the most brilliant and versatile filmmakers of Hollywood's golden age. With "The Apartment", Wilder became the first person to win Academy Awards as producer, director, and screenwriter for the same film.
Document 11: BAFTA Award for Best Direction: Winners of the BAFTA Award for Best Direction presented by the British Academy of Film and Television Arts. John Schlesinger, Roman Polanski, Woody Allen, Alan Parker, Louis Malle, Joel Coen, Peter Weir and Ang Lee tie for the most wins in this category, with two each. Martin Scorsese holds the record for most nominations, with nine.
Document 12: The Life of Emile Zola: The Life of Emile Zola is a 1937 American biographical film about French author Émile Zola, played by Paul Muni and directed by William Dieterle. It has the distinction of being the second biographical film to win the Oscar for Best Picture. It premiered at the Los Angeles Carthay Circle Theatre to great success both critically and financially. Contemporary reviews cited it the best biographical film made up to that time. In 2000, it was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".
Document 13: William Dieterle: William Dieterle (July 15, 1893 – December 9, 1972) was a German actor and film director, who worked in Hollywood for much of his career. His best known films include "The Devil and Daniel Webster", "The Story of Louis Pasteur" and "The Hunchback of Notre Dame". His 1937 film "The Life of Emile Zola" won the Academy Award for Best Picture.
Document 14: William C. deMille: William Churchill de Mille (July 25, 1878 – March 5, 1955) was an American screenwriter and film director from the silent movie era through the early 1930s. He was also a noted playwright prior to moving into film. Once he was established in film he specialized in adapting Broadway plays into silent films.
Document 15: Warren Beatty: Henry Warren Beatty ("né" Beaty; born March 30, 1937), better known as Warren Beatty, is an American actor and filmmaker. He has been nominated for fourteen Academy Awards – four for Best Actor, four for Best Picture, two for Best Director, three for Original Screenplay, and one for Adapted Screenplay – winning Best Director for "Reds" (1981). Beatty is the only person to have been nominated for acting in, directing, writing, and producing the same film, and he did it twice – first for "Heaven Can Wait" (1978), and again for "Reds" (1981).
ground_truth: no