Question: which British historical thriller film directed by Alfred Hitchcock did Margaret Leighton appeared in?

Documents:
source: Margaret Leighton
text: Margaret Leighton Margaret Leighton, CBE (26 February 1922 – 13 January 1976) was an English actress, known for her exquisite sense of grandeur and refinement. Her film appearances included "Under Capricorn" (1949), "Calling Bulldog Drummond" (1951), "Carrington V.C." (1955) and "The Best Man" (1964). For "The Go-Between" (1971), she won the BAFTA Award for Best Actress in a Supporting Role and was nominated for the Academy Award for Best Supporting Actress.

source: Under Capricorn
text: Under Capricorn Under Capricorn is a 1949 British historical thriller film directed by Alfred Hitchcock about a couple in Australia who started out as lady and stable boy in Ireland, and who are now bound together by a horrible secret. The film was based on the novel "Under Capricorn" (1937) by Helen Simpson, with a screenplay by James Bridie. It was adapted to the screen by Hume Cronyn. This was Hitchcock's second film in Technicolor, and like the preceding color film "Rope" (1948), it also featured 10-minute takes.

source: The Girl (2012 TV film)
text: The Girl (2012 TV film) The Girl is a 2012 British television film directed by Julian Jarrold, written by Gwyneth Hughes and produced by the BBC and HBO Films. The film stars Sienna Miller as Tippi Hedren and Toby Jones as Alfred Hitchcock. It is based on Donald Spoto's 2009 book, "Spellbound by Beauty: Alfred Hitchcock and His Leading Ladies", which discusses British-born film director Hitchcock and the women who played leading roles in his films. "The Girl"' s title was inspired by Hitchcock's alleged nickname for Hedren.

source: List of The Alfred Hitchcock Hour episodes
text: List of The Alfred Hitchcock Hour episodes The following is a list of the 93 episodes of the television program The Alfred Hitchcock Hour, which is a continuation of the program "Alfred Hitchcock Presents" (1955–60). "The Alfred Hitchcock Hour", like its predecessor, is an anthology series in the thriller genre. NBC renamed the program when they extended its running-time from about 25 minutes to about 50 minutes. Both programs were hosted by Alfred Hitchcock, whose directorial work in thriller films is extremely influential. Hitchcock directed only one episode of "The Alfred Hitchcock Hour": "I Saw The Whole Thing" (Season 1, episode 4).

source: Bonnie Prince Charlie (1948 film)
text: Bonnie Prince Charlie (1948 film) Bonnie Prince Charlie is a 1948 British historical film directed by Anthony Kimmins for London Films depicting the 1745 Jacobite Rebellion and the role of Bonnie Prince Charlie within it. Filmed in Technicolor, it starred David Niven, Jack Hawkins and Margaret Leighton.

source: Sebastiane
text: Sebastiane Sebastiane is a 1976 Latin-language British historical thriller film written and directed by Derek Jarman and Paul Humfress. It portrays the events of the life of Saint Sebastian, including his iconic martyrdom by arrows. The film, which was aimed at a gay audience, was controversial for the homoeroticism portrayed between the soldiers and for being dialogued entirely in Latin.

source: Room to Let (1950 film)
text: Room to Let (1950 film) Room to Let is a 1950 British historical thriller film directed by Godfrey Grayson and starring Jimmy Hanley, Valentine Dyall and Constance Smith.

source: Bequest to the Nation (film)
text: Bequest to the Nation (film) Bequest to the Nation is a 1973 British historical drama film directed by James Cellan Jones and starring Glenda Jackson, Peter Finch, Michael Jayston and Margaret Leighton. It is based on the 1970 Terence Rattigan play "A Bequest to the Nation". The film depicts the relationship between Admiral Lord Nelson and Lady Hamilton during the Napoleonic Wars plus others they would meet, including Nelson's nephew: the story takes place before Nelson's heading out to sea for the battle of Trafalgar. In the United States, it was released as The Nelson Affair.

source: Calling Bulldog Drummond
text: Calling Bulldog Drummond Calling Bulldog Drummond is a 1951 British crime film directed by Victor Saville and featuring Walter Pidgeon, Margaret Leighton, Robert Beatty, David Tomlinson, and Bernard Lee. It featured the character Bulldog Drummond created by the novelist Herman Cyril McNeile, which had seen a number of screen adaptations. A novel tie-in was also released in 1951. It was made by the British subsidiary of MGM at Elstree Studios. The film's sets were designed by the art director Alfred Junge.

source: '71 (film)
text: '71 (film) <nowiki>'71</nowiki> is a 2014 British historical thriller film set in Northern Ireland, written by Gregory Burke and directed by Yann Demange. It stars Jack O'Connell, Sean Harris, David Wilmot, Richard Dormer, Paul Anderson and Charlie Murphy, and tells the story of a British soldier who becomes separated from his unit during a riot in Belfast at the height of the Troubles in 1971. Filming began on location in Blackburn, Lancashire, in April 2013 and continued in Sheffield and Liverpool. The film was funded by the British Film Institute, Film4, Creative Scotland and Screen Yorkshire. The film had its premiere in the competition section of the 64th Berlin International Film Festival, held in February 2014.

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Answer: Under Capricorn