Blake Edwards (born William Blake Crump; July 26, 1922 – December 15, 2010) was an American film director, screenwriter, and producer.
William Surrey Hart (December 6, 1864 – June 23, 1946) was an American silent film actor, screenwriter, director and producer.
 He is remembered as a foremost western star of the silent era who "imbued all of his characters with honor and integrity."
 During the late 1910s and early 1920s, he was one of the most consistently popular movie stars, frequently ranking high among male actors in popularity contests held by movie fan magazines.
Priceless (French: Hors de prix ) is a 2006 French film directed by Pierre Salvadori, and starring Audrey Tautou and Gad Elmaleh.
 According to the director, the film is inspired by the 1961 Blake Edwards film, "Breakfast at Tiffany's".
Bring Your Smile Along is a 1955 Technicolor comedy film by Blake Edwards.
 It was Edwards' directorial debut and the motion picture debut of Constance Towers.
 Edwards wrote the script for this Frankie Laine musical with his mentor, director Richard Quine.
 Songs Laine sang in the film included his 1951 hit "The Gandy Dancers' Ball."
The Great Race is a 1965 American Technicolor slapstick comedy film starring Jack Lemmon, Tony Curtis, and Natalie Wood, directed by Blake Edwards, written by Blake Edwards and Arthur A. Ross, and with music by Henry Mancini and cinematography by Russell Harlan.
 The supporting cast includes Peter Falk, Keenan Wynn, Arthur O'Connell and Vivian Vance.
 The movie cost US$12 million, making it the most expensive comedy film at the time.
Gunn is an American 1967 mystery film directed by Blake Edwards, and starring Craig Stevens.
 It featured the same lead role and actor from the 1958-1961 television series "Peter Gunn", and the same Henry Mancini theme.
 The characters of Gunn's singing girlfriend Edie Hart, club owner "Mother" and friendly Police Lieutenant Jacoby were played by different actors.
 It was followed 20 years later by a TV remake starring Peter Strauss.
Panhandle is a 1948 film directed by Lesley Selander.
 This Western marked the writing and producing debuts of Blake Edwards and John C. Champion.
 Champion later reworked the story as the 1966 Audie Murphy western, "The Texican".
 The team of Edwards, Champion, Selander, and star Rod Cameron reteamed the following year for the western "Stampede".
 Edwards later produced the police drama "City Detective" starring Cameron.
 The series was the first syndicated on television.
He Laughed Last is a 1956 Technicolor film by Blake Edwards.
 Edwards adapted the film for his 1999 off-Broadway show, Big Rosemary.
 Edwards directed Cady Huffman in the Lucy Marlow role from the original.
 Edwards rewrote the show which he directed for a 2004 Los Angeles stage production starring Jennifer Leigh Warren.
 One of the highlights of the movie was when Frankie Laine sang a wonderful version of "Danny Boy" at the funeral of his mob boss.
 This song is only available on the Bear Family Records Frankie Laine CD box "I Believe".
 The movie was a regular on late night television for many years, and is now being shown on the Turner Classic Movies (TCM) cable channel.
Austin Film Festival (AFF), founded in 1994, is an organization in Austin, Texas, that focuses on writers’ creative contributions to film.
 Initially, AFF was called the Heart of Film Screenwriters Conference and functioned to launch the careers of screenwriters, who historically have been underrepresented within the film industry.
 Since then, AFF has grown to serve all filmmakers and has added to Austin’s arts community by creating year-round programming that recognizes the art and value of storytelling through film.
Son of the Pink Panther (1993) is a continuation of "The Pink Panther" film series.
 Directed by Blake Edwards, it stars Roberto Benigni as Inspector Clouseau's illegitimate son.
 Also in this film are "Panther" regulars Herbert Lom, Burt Kwouk and Graham Stark and a star of the original 1963 film, Claudia Cardinale.
 It was the final film for both filmmaker Blake Edwards and composer Henry Mancini; Edwards retired from movie making, and Mancini died the following year.

Question: Where both William S. Hart and Blake Edwards film screenwriters?
Answer: yes