Question: Who is the spouse of the director of film The Belles Of St. Trinian'S?

Knowledge 1: The Belles of St. Trinian's
The Belles of St Trinian's is a British comedy film set in the fictional St Trinian's school, released in 1954.It and its sequels were inspired by British cartoonist Ronald Searle.Directed by Frank Launder and written by Launder and Sidney Gilliat, it was the first of a series of four films.Alastair Sim stars in a dual role as the headmistress Miss Millicent Fritton and her twin brother Clarence Fritton. [SEP] Knowledge 2: Frank Launder
Frank Launder (28 January 1906 – 23 February 1997) was a British writer, film director and producer, who made more than 40 films, many of them in collaboration with Sidney Gilliat.He was born in Hitchin, Hertfordshire, England and worked briefly as a clerk before becoming an actor and then a playwright.He began working as a screenwriter on British films in the 1930s, contributing the original story for the classic Will Hay comedy "Oh, Mr Porter!"(1937).After writing a number of screenplays with Gilliat, including "The Lady Vanishes" (1938) for Alfred Hitchcock, and "Night Train to Munich" for Carol Reed; the two men wrote and directed the wartime drama "Millions Like Us" (1943).After founding their own production company Individual Pictures, they produced a number of memorable dramas and thrillers including"I See a Dark Stranger" (1945) and "Green for Danger" (1946), but were best known for their comedies including "The Happiest Days of Your Life" (1950) and most famously, the St Trinians series, based on Ronald Searle's cartoons set in an anarchic girls school.He was married to actress Bernadette O'Farrell from 1950 until his death in Monaco.The couple had two children.
Knowledge 1: The Belles of St. Trinian's
The Belles of St Trinian's is a British comedy film set in the fictional St Trinian's school, released in 1954.It and its sequels were inspired by British cartoonist Ronald Searle.Directed by Frank Launder and written by Launder and Sidney Gilliat, it was the first of a series of four films.Alastair Sim stars in a dual role as the headmistress Miss Millicent Fritton and her twin brother Clarence Fritton. [SEP] Knowledge 2: The Pure Hell of St Trinian's
The Pure Hell of St Trinian's is a 1960 British comedy film set in the fictional St Trinian's School.Directed by Frank Launder and written by him and Sidney Gilliat, it was the third in a series of four films.
Knowledge 1: Frank Launder
Frank Launder (28 January 1906 – 23 February 1997) was a British writer, film director and producer, who made more than 40 films, many of them in collaboration with Sidney Gilliat.He was born in Hitchin, Hertfordshire, England and worked briefly as a clerk before becoming an actor and then a playwright.He began working as a screenwriter on British films in the 1930s, contributing the original story for the classic Will Hay comedy "Oh, Mr Porter!"(1937).After writing a number of screenplays with Gilliat, including "The Lady Vanishes" (1938) for Alfred Hitchcock, and "Night Train to Munich" for Carol Reed; the two men wrote and directed the wartime drama "Millions Like Us" (1943).After founding their own production company Individual Pictures, they produced a number of memorable dramas and thrillers including"I See a Dark Stranger" (1945) and "Green for Danger" (1946), but were best known for their comedies including "The Happiest Days of Your Life" (1950) and most famously, the St Trinians series, based on Ronald Searle's cartoons set in an anarchic girls school.He was married to actress Bernadette O'Farrell from 1950 until his death in Monaco.The couple had two children. [SEP] Knowledge 2: St Trinian's (film)
St Trinian's is a 2007 British comedy film and the sixth in a long- running series of British films based on the works of cartoonist Ronald Searle set in St Trinian's School.The first five films form a series, starting with" The Belles of St Trinian's" in 1954, with sequels in 1957, 1960, 1966 and 1980.The release of 2007, 27 years after the last entry, and 53 years after the first film, is a rebooting of the franchise, rather than a direct sequel, with certain plot elements borrowed from the first film.Whereas the earlier films concentrated on the adults, this film gives the school pupils greater prominence.St Trinian's is an anarchic school for uncontrollable girls run by eccentric headmistress Camilla Dagey Fritton( the reboot continues the tradition, established by Alastair Sim in the original film, of casting a male actor to play the female headmistress, with Rupert Everett inheriting the role)." St Trinian's" received mixed reviews but remains one of the highest- grossing British independent films of the last thirty years.

Answer: Bernadette O'Farrell