Question: Are Ryūichi Hiroki and Maurice Elvey both film directors?

Context paragraphs:
Otoko no Isshō: Otoko no Isshō (娚の一生 ) is a slice of life romance "josei" manga series written and illustrated by Keiko Nishi.  It was published by Shogakukan on "Flowers" magazine and in four volumes compiling the chapters.  A live action romantic drama film adaptation was released on February 14, 2015.  It's directed by Ryūichi Hiroki and written by Hiroshi Saitō.  It stars Nana Eikura and Etsushi Toyokawa.

Second Fiddle (1957 film): Second Fiddle is a 1957 British comedy film directed by Maurice Elvey and starring Adrienne Corri, Thorley Walters, Lisa Gastoni and Richard Wattis.  The film was produced by Robert Dunbar for Act Films Ltd.  It was the final film of prolific director Maurice Elvey.

Vibrator (film): Vibrator (ヴァイブレータ ) is a 2003 Japanese film directed by Ryūichi Hiroki.

It's Only Talk: It's Only Talk is a Japanese film, released in 2005 and is based on the prizewinning novel of the same title written by Akiko Itoyama and directed by Ryūichi Hiroki.

River (2011 film): River is a 2011 Japanese drama film based on the 2008 Akihabara massacre incident.  The film is written and directed by Ryūichi Hiroki.  The film stars actress Misako Renbutsu, who will play the role of a person who lost her love interest in the attacks.

Ryūichi Hiroki: Ryūichi Hiroki (廣木 隆一 , Hiroki Ryūichi , born January 1, 1954) is a Japanese film director.  He won critical acclaim for "800 Two Lap Runners".  Film critic and researcher Alexander Jacoby has described Hiroki as "one of the modern Japanese cinema's most intelligent students of character".

800 Two Lap Runners: 800 Two Lap Runners is a 1994 Japanese film directed by Ryūichi Hiroki starring Shunsuke Matsuoka and Eugene Nomura.  For director Hiroki, the film marks a transition from his early work in "pink film" to mainstream cinema.

Mademoiselle from Armentieres (film): Mademoiselle from Armentieres is a 1926 British World War I silent drama film directed by Maurice Elvey and starring Estelle Brody, John Stuart and Alf Goddard.  The film was Elvey's first collaboration with screenwriter Victor Saville.  It was followed by a 1928 sequel "Mademoiselle Parley Voo".

Kiiroi Zou: Kiiroi Zou (きいろいゾウ ) is a 2013 Japanese film directed by Ryūichi Hiroki.

Maurice Elvey: Maurice Elvey (11 November 1887 – 28 August 1967) was the most prolific film director in British history.  He directed nearly 200 films between 1913 and 1957.  During the silent film era he directed as many as twenty films per year.  He also produced more than fifty films - his own as well as films directed by others.

Supporting paragraphs: Ryūichi Hiroki Maurice Elvey
Answer: yes