Question: Madonna and William Friedkin, are of which nationality?

full_context: Document 1: Killer Joe (film): Killer Joe is a 2011 American Southern Gothic black comedy crime film directed by William Friedkin. The screenplay by Tracy Letts is based on his 1993 play of the same name. The film stars Matthew McConaughey in the title role, Emile Hirsch, Juno Temple, Gina Gershon, and Thomas Haden Church. Friedkin and Letts had similarly collaborated on the 2006 film "Bug".
Document 2: The Thin Blue Line (1965 film): The Thin Blue Line was the second of three documentaries William Friedkin made for producer David Wolper. It focused on the police force, and the experience making it influenced Friedkin on "The French Connection".
Document 3: Michael Jackson videography: American entertainer Michael Jackson (1958–2009) debuted on the professional music scene at age five as a member of The Jackson 5 and began a solo career in 1971 while still part of the group. Jackson has been called the King of Music Videos. Steve Huey of AllMusic observed how Jackson transformed the music video into an art form and a promotional tool through complex story lines, dance routines, special effects and famous cameo appearances, simultaneously breaking down racial barriers. Before "Thriller", Jackson struggled to receive coverage on MTV, allegedly because he was African American. Pressure from CBS Records persuaded MTV to start showing "Billie Jean" and later "Beat It", leading to a lengthy partnership with Jackson, also helping other black music artists gain recognition. MTV employees deny any racism in their coverage, or pressure to change their stance. MTV maintains that they played rock music, regardless of race. The popularity of his videos on MTV helped to put the relatively young channel "on the map"; MTV's focus shifted in favor of pop and R&B. His performance on "Motown 25: Yesterday, Today, Forever" changed the scope of live stage show; "That Jackson lip-synced 'Billie Jean' is, in itself, not extraordinary, but the fact that it did not change the impact of the performance is extraordinary; whether the performance was live or lip-synced made no difference to the audience" thus creating an era in which artists re-create the spectacle of music video imagery on stage. Short films like "Thriller" largely remained unique to Jackson, while the group dance sequence in "Beat It" has frequently been imitated. The choreography in "Thriller" has become a part of global pop culture, replicated everywhere from Indian films to prisons in the Philippines. The "Thriller" short film marked an increase in scale for music videos, and has been named the most successful music video ever by the "Guinness World Records".
Document 4: Sorcerer (film): Sorcerer is a 1977 American existential thriller film directed and produced by William Friedkin and starring Roy Scheider, Bruno Cremer, Francisco Rabal, and Amidou. The second adaptation of Georges Arnaud's 1950 French novel "Le Salaire de la peur", it has been widely considered a remake of the first adaptation, the 1953 film "The Wages of Fear". Friedkin, however, has disagreed with this assessment. The plot depicts four outcasts from varied backgrounds meeting in a South American village, where they are assigned to transport cargoes of nitroglycerin.
Document 5: William Peter Blatty: William Peter Blatty (January 7, 1928 – January 12, 2017) was an American writer and filmmaker best known for his 1971 novel "The Exorcist" and for the Academy Award-winning screenplay of its film adaptation. He also wrote and directed the sequel "The Exorcist III". After the success of "The Exorcist", Blatty reworked "Twinkle, Twinkle, "Killer" Kane!" (1960) into a new novel titled "The Ninth Configuration", published in 1978. Two years later, Blatty adapted the novel into a film of the same title and won Best Screenplay at the 1981 Golden Globe Awards. Some of his other notable works are the novels "Elsewhere" (2009), "Dimiter" (2010) and "Crazy" (2010).
Document 6: Oliver Stone: William Oliver Stone (born September 15, 1946) is an American screenwriter, film producer, and director of motion pictures and documentaries. Stone won an Academy Award for Best Adapted Screenplay as writer of "Midnight Express" (1978). He also wrote the acclaimed gangster movie "Scarface" (1983). As a director, Stone achieved prominence as director/writer of the war drama "Platoon" (1986), for which Stone won the Academy Award for Best Director; the film was awarded Best Picture. "Platoon" was the first in a trilogy of films based on the Vietnam War, in which Stone served as an infantry soldier. He continued the series with "Born on the Fourth of July" (1989)—for which Stone won his second Best Director Oscar—and "Heaven & Earth" (1993). Stone's other notable works include the Salvadoran Civil War-based drama "Salvador" (1986); the financial drama "Wall Street" (1987) and its 2010 sequel ""; the Jim Morrison biopic "The Doors" (1991); and a trilogy of films based on the American Presidency—"JFK" (1991), "Nixon" (1995) and "W." (2008). His latest film is "Snowden" (2016).
Document 7: Madonna singles discography: American singer Madonna has released 83 singles and 16 promotional singles, and charted with 14 other songs. In 1982, she signed a contract with Sire Records and Warner Bros. Records, and released her first two singles before launching her eponymous debut album. Her first entry on the US "Billboard" Hot 100 was "Holiday" (1983), which peaked at number 16. The following year, Madonna released "Like a Virgin", which reached number one in Australia, Canada and the US; in the latter it spent six weeks atop the chart. The album "Like a Virgin" spawned three other top five singles: "Material Girl", "Angel", and "Dress You Up". In 1985, Madonna released her second US number-one single, "Crazy for You", and her first UK number-one single, "Into the Groove", both from feature film soundtracks. The following year, her third studio album "True Blue" gave her three number-one singles: "Live to Tell", "Papa Don't Preach", and "Open Your Heart". Two other singles from the album, "True Blue" and "La Isla Bonita", were top-five hits. In 1987, she scored another number-one single with "Who's That Girl". The title track from Madonna's fourth studio album, "Like a Prayer" (1989), was her seventh single to top the Hot 100 chart, making her the female artist with the most number-one singles in the 1980s (shared with Whitney Houston).
Document 8: Madonna (entertainer): Madonna Louise Ciccone ( ; born August 16, 1958) is an American singer, songwriter, actress, and businesswoman. A leading presence during the emergence of MTV in the 1980s, Madonna is known for pushing the boundaries of lyrical content in mainstream popular music, as well as visual imagery in music videos and on stage. She has also frequently reinvented both her music and image while maintaining autonomy within the recording industry. Besides sparking controversy, her works have been acclaimed by music critics. Referred to as the "Queen of Pop", Madonna is widely cited as an influence by other artists.
Document 9: List of Madonna live performances: American singer Madonna has embarked on ten concert tours, nine of which have been worldwide. Her 1985 debut, The Virgin Tour, was based in North America only and was critically panned but went on to collect more than US $5 million. In 1987 she performed on the worldwide Who's That Girl World Tour, which visited Europe, North America and Japan. It was critically appreciated for Madonna's showmanship and "exquisite" dresses. She embarked on the Blond Ambition World Tour in 1990, which Don Shewey of "Rolling Stone" called "the best tour of [the year]". The performances featured Madonna simulating masturbation during "Like a Virgin". Officials in Toronto threatened to arrest her unless she removed the masturbation sequence, and in Italy, the Pope called for a boycott. In 1993, Madonna visited Israel and Turkey for the first time, followed by Latin America and Australia, with The Girlie Show World Tour. Madonna opened the show dressed as a whip-cracking dominatrix, surrounded by topless dancers of both sexes. A review in "Time" by Sam Buckley said: "Madonna, once the Harlow harlot and now a perky harlequin, is the greatest show-off on earth."
Document 10: William Friedkin: William Friedkin (born August 29, 1935) is an American film director, producer and screenwriter best known for directing "The French Connection" in 1971 and "The Exorcist" in 1973; for the former, he won the Academy Award for Best Director. Some of his other films include "Sorcerer", "Cruising", "To Live and Die in L.A.", "Jade", "Rules of Engagement", "The Hunted", "Bug", and "Killer Joe".
Document 11: William Castle: William Castle (April 24, 1914 – May 31, 1977) was an American film director, producer, screenwriter, and actor.
Document 12: Madonna filmography: American entertainer Madonna has worked in twenty-six feature films (twenty-one as an actress), nine short films, three theatrical plays, ten television episodes, and sixteen commercials. In 1979, she made her acting debut in the low-budget feature, "A Certain Sacrifice". Its commercial release in 1985 coincided with the success of her second studio album, "Like a Virgin". That same year, she made a cameo appearance as a club singer in the film "Vision Quest"; she also garnered commercial and critical success for the title role in Susan Seidelman's "Desperately Seeking Susan". Madonna followed it with a leading role in the adventure drama, "Shanghai Surprise" (1986), with her then-husband actor Sean Penn. The film was panned by critics, and Madonna received her first Golden Raspberry Award for Worst Actress. Her next films such as "Who's That Girl" (1987) and "Bloodhounds of Broadway" (1989) were critical and commercial failures. In 1986, she made her theatrical debut in David Rabe's "Goose and Tom-Tom" and her first commercial for Mitsubishi in Japan. She starred in the 1989 commercial for Pepsi-Cola alongside her song "Like a Prayer". Due to the controversy surrounding the song's music video, the commercial was revoked and her contract with Pepsi-Cola was cancelled.
Document 13: Cher: Cher ( ; born Cherilyn Sarkisian; May 20, 1946) is an American singer and actress. Sometimes referred to as the Goddess of Pop, she has been described as embodying female autonomy in a male-dominated industry. She is known for her distinctive contralto singing voice and for having worked in numerous areas of entertainment, as well as adopting a variety of styles and appearances during her five-decade-long career.
Document 14: Madonna Studies: Madonna Studies is a term which has been used to refer to a development of a field in several studios since late 1980s. One writer described the "institutionalization of a major subdivision of American media studies into Madonna studies". The field related to the study of and interpretation of the work of American pop musician Madonna using an interdisciplinary approach incorporating cultural studies and media studies. A notable compendium of essays titled "The Madonna Connection" was published in 1992. Controversy over this field of study stemmed from discussions over the intellectual worth of pursuing academic inquiry into a pop musician, with some arguing the field was nothing more than pop cultural commentary.
Document 15: The French Connection (film): The French Connection is a 1971 American crime thriller film directed by William Friedkin and produced by Philip D'Antoni. It stars Gene Hackman, Fernando Rey, and Roy Scheider. The film was adapted and fictionalized by Ernest Tidyman from the 1969 non-fiction book by Robin Moore. It tells the story of New York Police Department detectives Jimmy "Popeye" Doyle and Buddy "Cloudy" Russo, whose real-life counterparts were Narcotics Detectives Eddie Egan and Sonny Grosso. Don Ellis scored the film.
ground_truth: American