A Letter from Ulster is a 1942 documentary by Ulster-born movie director Brian Desmond Hurst who, along with his lifelong friend Terence Young (scriptwriter) and fellow Ulsterman and Assistant Director William (Bill) MacQuitty, created this film promoting a sense of community between the people of Northern Ireland and over one hundred thousand troops from the US based in Northern Ireland at the time.
 Hurst went on to become one of Northern Ireland's most prominent film director and Young went on to direct the early Bond movies "Dr. No", "From Russia With Love" and "Thunderball".
 William MacQuitty went on to direct the "Titanic" film "A Night to Remember".
The Playboy of the Western World is a 1962 film version of the 1907 play written by John Millington Synge.
 It was directed and co-written by Brian Desmond Hurst and stars Gary Raymond and Siobhán McKenna.
 Filmed in County Kerry, the film features many of the Abbey Players.
 The film was produced by the Four Provinces company created in 1952 by Hurst and Michael Morris, 3rd Baron Killanin who had previously produced John Ford’s "The Rising of the Moon" and "Gideon's Day".
A Call For Arms was a short propaganda film made for the British Ministry of Information in 1940.
 It was directed by Brian Desmond Hurst and starred Jean Gillie and Rene Ray as two 'nudes' (showgirls) who do their bit for the war effort by going to work in munition factories.
 It was co-written by a Sgt. Terence Young who worked for Hurst on many projects before, during and after WW2.
Brian Desmond Hurst (12 February 1895 – 26 September 1986) was a Belfast-born film director.
 With over 30 films in his filmography, Hurst was Ireland's most prolific film director during the 20th century .
 He is perhaps best known for "Scrooge" (released abroad in the United States as "A Christmas Carol"), a film that frequently tops lists of classic Christmas movies.
Scrooge is a 1951 British fantasy drama film and an adaptation of Charles Dickens' "A Christmas Carol" (1843).
 It stars Alastair Sim as Ebenezer Scrooge, and was produced and directed by Brian Desmond Hurst, with a screenplay by Noel Langley.
 It was released as A Christmas Carol in the United States.
The Lion Has Wings is a 1939 British, black-and-white, documentary-style, propaganda war film.
 The film was directed by Adrian Brunel, Brian Desmond Hurst, Alexander Korda and Michael Powell.
 It was produced by London Film Productions and Alexander Korda Film Productions.
Trottie True is a 1949 British musical comedy film directed by Brian Desmond Hurst and starring Jean Kent, James Donald and Hugh Sinclair.
 It was known as "The Gay Lady" in the U.S., and is a rare British Technicolour film of the period.
 According to the BFI Screenonline, "British 1940s Technicolor films offer an abundance of visual pleasures, especially when lovingly restored by the National Film Archive.
 Trottie True is not among the best known, but comes beautifully packaged, gift wrapped with all the trimmings."
The Tell-Tale Heart is a 1934 British drama film directed by Brian Desmond Hurst.
 The screenplay by David Plunkett Greene is based on the 1843 short story of the same title by Edgar Allan Poe.
 It is the earliest known "talkie" film adaptation of the story.
Glamorous Night is a 1937 British drama film directed by Brian Desmond Hurst and starring Mary Ellis, Otto Kruger and Victor Jory.
 It is an adaptation of the play "Glamorous Night" by Ivor Novello.
 In a mythical European kingdom, King Stefan clashes with his prime minister and falls in love with the gypsy loving Melitza.
On the Night of the Fire, released in the United States as The Fugitive, is a 1939 British thriller, directed by Brian Desmond Hurst and starring Ralph Richardson and Diana Wynyard.
 The film is based on the novel of the same name by F. L. Green.
 It was shot on location in Newcastle upon Tyne and was released shortly after the outbreak of World War II.
 It is regarded as an early example of British film noir, with the kind of subject matter and filming style which fell completely out of favour during the war years – when British studios felt that cinemagoers would want either light entertainment and escapism or topical patriotic propaganda pieces – and would not be taken up again until the later 1940s.

Question: Brian Desmond Hurst is best known for a film, released in the United States as "A Christmas Carol" that is an adaptation to what other film?
Answer: Charles Dickens' "A Christmas Carol"