Question: What profession does Adrian Brunel and Richard Oswald have in common?

Context paragraphs:
Love at Sea (1936 film): Love at Sea is a 1936 British comedy film directed by Adrian Brunel and starring Rosalyn Boulter, Carl Harbord and Aubrey Mallalieu.  During production a major fire broke out at Elstree Studios where the film was being shot.  Brunel moved production to another studio and managed to complete the film on time.  The screenplay concerns a woman travelling on a cruise ship who falls in love with a suspected thief on board.

The Man Without Desire: The Man Without Desire is a 1923 British silent film fantasy drama, directed by Adrian Brunel and starring Ivor Novello, who also co-produced the film along with Miles Mander.  The film was Brunel's feature-length directorial debut and has been described as "one of the stranger films to emerge from Britain in the 1920s".  The film's theme of loss of sexual desire, and by implication impotence, was exceptionally frank for its time; oddly however, it appears to have been passed for release without interference by the British film censors, who at this period has a reputation for extreme zealousness where sexual matters in film were concerned.

The Girl Who Forgot: The Girl Who Forgot is a 1940 British comedy film directed by Adrian Brunel and starring Elizabeth Allan, Ralph Michael and Enid Stamp-Taylor.  It was made at the Nettlefold Studios in Walton-on-Thames, based on a novel by Gertrude E. Jennings.  A young woman loses her memory.  It was the final film of Brunel, who had been a leading director during the silent era.

The Crooked Billet: The Crooked Billet is a 1929 British drama film directed by Adrian Brunel and starring Madeleine Carroll, Carlyle Blackwell and Miles Mander.  It was released in both silent and sound versions, as its production came as the industry was shifting over.  It was made by Gainsborough Pictures at their Islington Studios.

A Light Woman (1928 film): A Light Woman is a 1928 British silent romance film directed by Adrian Brunel and starring Benita Hume, C.M. Hallard and Gerald Ames.  It is also known by the alternative title Dolores.  The screenplay concerns a flighty young woman who learns the error of her ways through a series of love affairs.

Adrian Brunel: Adrian Brunel (4 September 1892 – 18 February 1958) was an English film director and screenwriter.  Brunel's directorial career started in the silent era, and reached its peak in the latter half of the 1920s.  His surviving work from the 1920s, both full-length feature films and shorts, is highly regarded by silent film historians for its distinctive innovation, sophistication and wit.  With the arrival of talkies, Brunel's career ground to a halt and he was absent from the screen for several years before returning in the mid-1930s with a flurry of quota quickie productions, a majority of which are now classed as lost.  Brunel's last credit as director was in a 1940 wartime propaganda short film, although he worked for a few years more as a "fixer-up" for films directed or produced by friends in the industry.

A Song Goes Round the World: A Song Goes Round the World (German: Ein Lied geht um die Welt) is a 1933 German drama film directed by Richard Oswald and starring Joseph Schmidt, Viktor de Kowa and Charlotte Ander.  An English-language version of the film was made "My Song Goes Round the World" by British International Pictures, also directed by Richard Oswald.  The film serves as a semi-biopic of Joseph Schmidt, who appears in it himself.  A 1958 film of the same name was also a biopic of Schmidt, who was by then dead.

Blighty (film): Blighty is a 1927 British World War I silent drama film directed by Adrian Brunel and starring Ellaline Terriss, Lillian Hall-Davis and Jameson Thomas.  The film was a Gainsborough Pictures production with screenplay by Eliot Stannard from a story by Ivor Montagu.

The Cost of a Kiss: The Cost of a Kiss is a 1917 British silent drama film directed by Adrian Brunel and starring Bertram Wallis, Marjorie Day and Edward Cooper.  It marked the feature film debut of Brunel who went on to become a leading British director of the 1920s.  It was the only film produced by Mirror Films, a company set up by Brunel and the screenwriter H. Fowler Mear.

Richard Oswald: Richard Oswald (5 November 1880 – 11 September 1963) was an Austrian director, producer, and screenwriter.

Supporting paragraphs: Adrian Brunel Richard Oswald
Answer: director