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

Context paragraphs:
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.

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".

Jailbreakers: Jailbreakers is a 1994 television film directed by William Friedkin.  Filming took place in Southern California and it was released on September 9, 1994.  The film originally aired on Showtime as part of their "Rebel Highway" series that took the titles of 1950s-era B-movies and applied them to original films.  The film was later released on VHS.

To Live and Die in L.A. (film): To Live and Die in L.A. is a 1985 American action thriller film directed by William Friedkin and based on the novel by former U.S. Secret Service agent Gerald Petievich, who co-wrote the screenplay with Friedkin.  The film features William Petersen, Willem Dafoe and John Pankow among others.  Wang Chung composed and performed the original music soundtrack.  The film tells the story of the lengths to which two Secret Service agents go to arrest a counterfeiter.

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.

The Boys in the Band: The Boys in the Band is a 1970 American drama film directed by William Friedkin.  The screenplay by Mart Crowley is based on his Off-Broadway play of the same title.  It is among the first major American motion pictures to revolve around gay characters and is often cited as a milestone in the history of queer cinema, and is also thought to be the first mainstream American film to use the swear word "cunt".

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".

Peter Bogdanovich: Peter Bogdanovich (Serbian: Петар Богдановић, "Petar Bogdanović", born July 30, 1939) is an American director, writer, actor, producer, critic and film historian.  He is part of the wave of "New Hollywood" directors, which included William Friedkin, Brian De Palma, George Lucas, Martin Scorsese, Michael Cimino and Francis Ford Coppola.  His most critically acclaimed and well-known film is the drama "The Last Picture Show" (1971).

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".

Exorcist II: The Heretic: Exorcist II: The Heretic is a 1977 American supernatural horror film directed by John Boorman and written by William Goodhart.  It stars Linda Blair, Richard Burton, Louise Fletcher, Max von Sydow, Kitty Winn, Paul Henreid and James Earl Jones.  It is a sequel to William Friedkin's 1973 film "The Exorcist" based on the 1971 novel by William Peter Blatty and the second installment of "The Exorcist" franchise.  The film is set four years after the original film and centers on the now 16-year-old Regan MacNeil, who is still recovering from her previous demonic possession.

Supporting paragraphs: Madonna (entertainer) William Friedkin
Answer: American