Question: Peter Watkins and Albert de Courville, are of which nationality?

Context articles: Are You There?
Peter Watkins
Oh Boy! (1938 film)
Wolves (1930 film)
Albert de Courville
There Goes the Bride (1932 film)
The Lambeth Walk (film)
Under the Leather Helmet
77 Park Lane
Seven Sinners (1936 film)

Are You There?
 is a "farcical musical play in two acts" composed by Ruggero Leoncavallo (with interpolations by Lewis F. Muir) with a book by Albert de Courville and lyrics by Edgar Wallace.
 Also described as an "operette" by "Variety", it premièred unsuccessfully on 1 November 1913 at The Prince of Wales Theatre, London to a rowdy audience which almost became a riot.
 Its star, Shirley Kellogg, was Courville's wife.
Peter Watkins (born 29 October 1935) is an English film and television director.
 He was born in Norbiton, Surrey, lived in Sweden, Canada and Lithuania for many years, and now lives in France.
 He is one of the pioneers of docudrama.
 His films present pacifist and radical ideas in a nontraditional style.
 He mainly concentrates his works and ideas around the mass media and our relation/participation to a movie or television documentary.
Oh Boy!
 is a 1938 British comedy film directed by Albert de Courville and starring Albert Burdon, Mary Lawson and Bernard Nedell.
 It was made at Elstree Studios by ABPC.
 The film's sets were designed by the art director John Mead.
Wolves is a 1930 British crime film directed by Albert de Courville and starring Charles Laughton, Dorothy Gish and Malcolm Keen.
 A woman is captured by a gang of criminals operating in the Arctic but the leader later helps her escape.
 It was based on a play by Georges Toudouze.
 It was produced by Herbert Wilcox's British and Dominions Film Corporation, but filmed at the Blattner Studios whilst sound equipment was being installed at Wilcox's nearby Imperial Studios, and the sound was added after filming was completed.
 It was Gish's first sound film, and was Laughton's second talkie (but his first sound drama), having completed a film of a musical variety performance earlier the same year.
 Of 57 minutes original duration, it was released in 1936 in a 37-minute version retitled "Wanted Men".
Albert de Courville (1887–1960) (born in Croydon, England) was a director of theatrical revues, many of which featured the actress and singer Shirley Kellogg, whom he married in June 1913.
 In the 1930s he turned to making films.
 His two most famous films, both featuring Jessie Matthews were "There Goes the Bride" (1932) and "The Midshipmaid" (1932).
 He also directed "The Wrecker", an adaptation of Arnold Ridley’s play of the same name, and "Seven Sinners" (1936).
There Goes the Bride is a 1932 British comedy film directed by Albert de Courville and starring Jessie Matthews, Owen Nares, Carol Goodner, Basil Radford and Roland Culver.
 A woman breaks off her an engagement and escapes to Paris.
 It is a remake of the German film "I'll Stay with You" (1931).
 David Niven makes his film debut in a tiny uncredited role.
The Lambeth Walk is a 1939 British musical comedy film directed by Albert de Courville and starring Lupino Lane, Sally Gray and Seymour Hicks.
 It was an adaptation of the 1937 musical "Me and My Girl", and was released under that title in the U.S.
 The film takes its British title from the play's best known song "The Lambeth Walk".
 The star of the musical, Lupino Lane, reprised his lead role in the film.
Under the Leather Helmet (French: Sous le casque de cuir) is a 1932 British-French drama film directed by Albert de Courville and starring Pierre Richard-Willm, Gina Manès and Gaston Modot.
77 Park Lane is a 1931 British thriller film directed by Albert de Courville and starring Dennis Neilson-Terry, Betty Stockfeld and Malcolm Keen.
 At an upmarket gambling house in Park Lane, a woman tries to save her brother from ruin.
 It was shot at Walton Studios.
 A French-language version "77 rue Chalgrin" was made at the same time.
Seven Sinners is a 1936 British thriller film directed by Albert de Courville and starring Edmund Lowe, Constance Cummings and Felix Aylmer.
 The screenplay concerns an American detective and his sidekick, who are called to Britain to take on a gang of international criminals.