Question: Sweet Bird of Youth is a comedy film that starred the theater and television actress of what nationality?

Context paragraphs:
Mildred Dunnock: Mildred Dorothy Dunnock (January 25, 1901 – July 5, 1991) was an American theater, film and television actress.

Geraldine Page: Geraldine Sue Page (November 22, 1924 – June 13, 1987) was an American film, television and stage actress.  An eight-time Academy Award nominee, she was nominated for "Hondo" (1953), "Summer and Smoke" (1961), "Sweet Bird of Youth" (1962), "You're a Big Boy Now" (1966), "Pete 'n' Tillie" (1972), "Interiors" (1978) and "The Pope of Greenwich Village" (1984), before winning the Academy Award for Best Actress for her performance as Carrie Watts in "The Trip to Bountiful" (1985).

Hildy Brooks: Hildy Brooks, born Hilda Brawner, is an actress who appeared on Broadway (starting in the late 1950s) and later on television.  Elia Kazan directed her on the Broadway stage in Tennessee Williams' play "Sweet Bird of Youth".  The stars of this play were Rip Torn, Paul Newman, and Geraldine Page, and included Bruce Dern, Diana Hyland, and Hildy as supporting cast.

Sweet Bird of Youth: Sweet Bird of Youth is a 1959 play by Tennessee Williams which tells the story of a gigolo and drifter, Chance Wayne, who returns to his home town as the companion of a faded movie star, Alexandra Del Lago (travelling incognito as Princess Kosmonopolis), whom he hopes to use to help him break into the movies.  The main reason for his homecoming is to get back what he had in his youth: primarily, his old girlfriend, whose father had run him out of town years before.  The play was written for Tallulah Bankhead, a good friend of Tennessee.

Rebecca Forstadt: Rebecca Lynn Forstadt (born December 16, 1953), also known as Reba West, is an American voice actress, best known for playing young female roles in various animated series.  After studying theater at Orange Coast College, in Costa Mesa, California, Forstadt began her acting career by working at Knott's Berry Farm's Bird Cage Theater, performing melodramas, often as the damsel in distress character.  Later, she went to Hollywood where she worked as a wardrobe mistress on such television shows as "The White Shadow" and "Hill Street Blues", as well as for the film "S.O.B.".  She also spent several years doing live theater in the Los Angeles area.  Most notably, she won some recognition for her portrayal of the character Josette in the world premiere of Eugène Ionesco's "Tales for People Under 3 Years of Age" at the Stages Theatre Center in 1982.  She starred in several low-budget movies such as "Mugsy's Girls", with Ruth Gordon and Laura Branigan, and "Round Numbers" with Kate Mulgrew, Samantha Eggar, and Shani Wallis.  She also appeared as a television actress in "Hill Street Blues", "St. Elsewhere", and "L.A. Law".  Her voice acting breakthrough came when she landed the leading role of Lynn Minmei in the English version of "Robotech", the popular anime series of the 1980s.  Since then, she has voiced hundreds of other anime characters like Nunnally Lamperouge in "Code Geass" and Tima from "Metropolis" and has branched into non-anime cartoons, live-action shows (such as "Masked Rider" and ""), commercials and radio work, and has performed background voices for movies such as "Antz", "Dr. Dolittle", and "The Santa Clause".

Arlene Schnitzer Concert Hall: The Arlene Schnitzer Concert Hall, opened as the Portland Publix Theater before becoming the Paramount Theatre after 1930, is a historic theater building and performing arts center in Portland, Oregon, United States.  Part of the Portland Center for the Performing Arts, it is home to the Oregon Symphony, Portland Youth Philharmonic, Metropolitan Youth Symphony, White Bird Dance Company, and Portland Arts & Lectures.  It is also a concert and film venue.  Originally (and sometimes still referred to as) the Paramount Theatre, it is also locally nicknamed "The Schnitz".

Şebnem Sönmez: Şebnem Sönmez (born 5 June 1968, Istanbul) is a Turkish theater, movie and television actress.  She started her career playing in theater in the Istanbul Pendik Youth Theatre while still a high school student.  She performed in groups such as Kartal Art Theatre and Taner Barlas Mim Theatre.  After completing and having her diploma from Istanbul State Conservatory, she worked in Dormen Theatre.  She then moved on to television roles as she continued her theater experience in Besiktas Cultural Center.  She has also taught theater at the kindergarten through high school level and founded the "Yaz Tiyatrosu" (Summer Theatre) group in her school while she continued her acting work.

Madeleine Sherwood: Madeleine Sherwood (November 13, 1922 – April 23, 2016) was a Canadian actress of stage, film and television.  She was widely known for her portrayals of Mae/Sister Woman and Miss Lucy in both the Broadway and film versions of Tennessee Williams' "Cat on a Hot Tin Roof" and "Sweet Bird of Youth".  She starred or featured in 18 original Broadway productions including "Arturo Ui", "Do I Hear a Waltz? " and "The Crucible".  In 1963 she won an Obie Award for Best Actress for her performance in "Hey You, Light Man!"  Off-Broadway.  However, she may be best remembered as Reverend Mother Placido to Sally Field's Sister Bertrille in "The Flying Nun" (1967–70).

Sweet Bird of Youth (film): Sweet Bird of Youth is a 1962 romantic-comedy film starring Paul Newman, Geraldine Page, Shirley Knight, Madeleine Sherwood, Ed Begley, Rip Torn and Mildred Dunnock.  Based on the play by Tennessee Williams, it focuses on the relationship between a drifter and a faded movie star.  The film was adapted and directed by Richard Brooks.

Barry Cahill (actor): Barry Cahill (May 28, 1921 – April 9, 2012) was a Canadian-born American film, theater and television actor, whose professional career spanned more than fifty years.  His film credits included "Grand Theft Auto", and "Sweet Bird of Youth".

Supporting paragraphs: Sweet Bird of Youth (film) Mildred Dunnock
Answer: American