Question: In what British film studio did Herbert Wilcox produce Sorrell and Son?

full_context: Document 1: Elstree Studios: Elstree Studios is a generic term which can refer to several current and defunct British film studios and television studios based in or around the towns of Borehamwood and Elstree in Hertfordshire. Studios have been located here since film production began in the area during 1914.
Document 2: Warner Bros. Studios, Leavesden: Warner Bros. Studios, Leavesden is an 80-hectare studio complex in Leavesden in Hertfordshire, in southeast England. Formerly known as Leavesden Film Studios and still colloquially known Leavesden Studios or simply Leavesden, it is a film and media complex owned by Warner Bros. The studios and backlot were all retrofitted as the site's original purpose was as an aircraft factory and airfield called Leavesden Aerodrome, a centre of British aircraft production during World War II. It is situated in Abbots Langley, near Watford, in southwest Hertfordshire.
Document 3: Walthamstow Studios: Walthamstow Studios was a British film studio located in Walthamstow, London which operated between 1914 and 1930. Two earlier studios had existed in Walthamstow. It was the base of Broadwest films for a number of years, which also used Catford Studios at an overflow facility. Later it was owned by British Filmcraft. After the bankrupt the studio's were sold off for non-film use.
Document 4: Self Made Lady: Self Made Lady is a 1932 British drama film directed by George King and starring Heather Angel, Henry Wilcoxon and Amy Veness. It marked the screen debut of Louis Hayward who later became a star in Hollywood. The film was made at the Nettlefold Studios in Walton-on-Thames. Cut down from its original running time of 77 minutes, it was distributed as a second feature by United Artists to allow the company to fulfill its quota requirement.
Document 5: Glamour (1931 film): Glamour is a 1931 British drama film directed by Seymour Hicks and Harry Hughes and starring Seymour Hicks, Ellaline Terriss and Margot Grahame. A young, ruthless woman falls in love with a rising actor. It was loosely remade for the 1934 American film "Glamour".
Document 6: The Little Minister (1934 film): The Little Minister is a 1934 American drama film starring Katharine Hepburn and directed by Richard Wallace. The screenplay by Jane Murfin, Sarah Y. Mason, and Victor Heerman is based on the 1891 novel and subsequent 1897 play of the same title by J. M. Barrie. The picture was the fifth feature film adaptation of the works, following four silent film versions. The original novel was the third of the three "Thrums" novels (a town based on his home of Kirriemuir), which first brought Barrie to fame.
Document 7: The Mind of Mr. Reeder: The Mind of Mr. Reeder is a 1939 British, black-and-white, crime, mystery, directed by Jack Raymond and starring Will Fyffe as Mr. Reeder, with Kay Walsh, George Curzon, and supporting roles for Chili Bouchier, John Warwick and Ronald Shiner. It was produced by Jack Raymond Productions. Allmovie lists the U.S. film title of The Mysterious Mr. Reeder. Its accompanying Synopsis follows. Also, Ronald Shiner, Will Fyffe and Jack Raymond were all involved in another Mr. Reeder film, The Missing People. The film is based on a novel by Edgar Wallace.
Document 8: Highbury Studios: The Highbury Studios were a British film studio located in Highbury, North London which operated from 1937 until 1956. The studios were constructed by the producer Maurice J. Wilson. During its early years the studio was hired out to independent production companies. Following the Second World War, Highbury was acquired by the Rank Organisation which used it to make low-budget second features featuring the company's rising actors. The studio was run by the producer John Croydon, who had previously worked at Ealing. In 1949 the studio operation was shut down as part of a series of cuts made throughout the Rank Organisation, which had suffered heavy financial losses. Occasional films were still made there by other companies, and it became increasingly used as a television studio.
Document 9: Sabotage (1936 film): Sabotage, also released as The Woman Alone, is a 1936 British espionage thriller film directed by Alfred Hitchcock and starring Sylvia Sidney, Oskar Homolka, and John Loder. It is loosely based on Joseph Conrad's novel "The Secret Agent", about a woman who discovers that her husband is an agent terrorist. "Sabotage" should not be confused with Hitchcock's film "Secret Agent", also released in 1936, but based on the stories of W. Somerset Maugham
Document 10: Elstree: Elstree is a village in the Hertsmere borough of Hertfordshire, England, on the former A5 road, which followed the course of Watling Street, approximately thirteen miles northwest of central London. In 2011, its population was 5,110. It forms part of the civil parish of Elstree and Borehamwood, originally known simply as Elstree.
Document 11: Islington Studios: Islington Studios often known as Gainsborough Studios were a British film studio located on the south bank of the Regent's Canal, in Poole Street, Hoxton in the former Metropolitan Borough of Shoreditch, London between 1919 and 1949. The studios are closely associated with Gainsborough Pictures which was based there for most of the studio's history. During its existence Islington worked closely with its sister Lime Grove Studios in Shepherd's Bush and many films were made partly at one studio and partly at the other. Amongst the films made at the studios were Alfred Hitchcock thrillers, Will Hay comedies and Gainsborough Melodramas.
Document 12: Sorrell and Son (1934 film): Sorrell and Son is a 1934 British drama film directed by Jack Raymond and written by Lydia Hayward. The film stars H. B. Warner, Margot Grahame, Peter Penrose, Hugh Williams and Winifred Shotter. It was made by the producer Herbert Wilcox at Elstree Studios. It is based on the 1925 novel of the same title by Warwick Deeping. A silent version had previously been released in 1927, also starring Warner.
Document 13: Erstwhile Susan: Erstwhile Susan is a 1919 American silent drama film directed by John S. Robertson, produced and distributed by Realart Pictures. It is based on a 1914 novel "Barnabetta" by Helen Reimensnyder Martin and later Broadway play "Erstwhile Susan" by Marian De Forest. Minnie Maddern Fiske starred in the Broadway play in 1916. This film version stars Mary Alden and Constance Binney, then an up-and-coming young actress. This film version, once thought to be lost, survives at the Museum of Modern Art.
Document 14: The Painted Veil (1934 film): The Painted Veil is a 1934 American drama film directed by Richard Boleslawski and starring Greta Garbo. The film was produced by Hunt Stromberg for Metro-Goldwyn-Mayer. Based on the 1925 novel "The Painted Veil" by W. Somerset Maugham, with a screenplay by John Meehan, Salka Viertel, and Edith Fitzgerald, the film is about a woman who accompanies her new husband to China while he conducts medical research. Feeling neglected by her husband, the woman soon falls in love with a handsome diplomatic attaché. The film score was by Herbert Stothart, the cinematography by William H. Daniels, the art direction by Cedric Gibbons, and the costume design by Adrian. The film earned $1,658,000 at the box office.
Document 15: Ealing Studios: Ealing Studios is a television and film production company and facilities provider at Ealing Green in west London. Will Barker bought the White Lodge on Ealing Green in 1902 as a base for film making, and films have been made on the site ever since. It is the oldest continuously working studio facility for film production in the world, and the current stages were opened for the use of sound in 1931. It is best known for a series of classic films produced in the post-WWII years, including "Kind Hearts and Coronets" (1949), "Passport to Pimlico" (1949), "The Lavender Hill Mob" (1951), and "The Ladykillers" (1955). The BBC owned and filmed at the Studios for forty years from 1955 until 1995. Since 2000, Ealing Studios has resumed releasing films under its own name, including the revived "St Trinian's" franchise. In more recent times, films shot here include "The Importance of Being Earnest" (2002) and "Shaun of the Dead" (2004), as well as "The Theory of Everything" (2014), "The Imitation Game" (2014) and "Burnt" (2015). Interior scenes of the British period drama television series "Downton Abbey" were shot in Stage 2 of the studios. The Met Film School London operates on the site.
ground_truth: Elstree Studios