Question: Are Maher Sabry and Joseph L. Mankiewicz both cartoonist?

Context paragraphs:
Million Dollar Legs (1932 film): Million Dollar Legs is a 1932 American Pre-Code comedy film starring Jack Oakie and W. C. Fields, directed by Edward F. Cline, produced by Herman J. Mankiewicz (co-writer of "Citizen Kane") and B. P. Schulberg, co-written by Joseph L. Mankiewicz, and released by Paramount Pictures.  The film was inspired by the 1932 Summer Olympics, held in Los Angeles.

Francis Mankiewicz: Francis Mankiewicz (March 15, 1944 in Shanghai, China – August 14, 1993 in Montreal, Quebec, Canada) was a Canadian film director, screenwriter and producer.  In 1945, his family moved to Montreal, where Francis spent all his childhood.  His father was a second cousin to the famous Hollywood brothers, Joseph L. Mankiewicz and Herman J. Mankiewicz.

Maher Sabry: Maher Sabry (in Arabic ماهر صبري, born 11 April 1967) is an Egyptian theater director, playwright, film director, producer and screenwriter, poet, writer and cartoonist.

There Was a Crooked Man...: There Was a Crooked Man... is a 1970 western starring Kirk Douglas and Henry Fonda and directed by Joseph L. Mankiewicz.  This was the only western made by Mankiewicz, director of such notable films as "All About Eve", "Guys and Dolls" and "Cleopatra".  It was written by David Newman and Robert Benton, their first script after "Bonnie and Clyde".

All My Life (2008 film): All My Life (Arabic: طول عمري‎ ‎ ; translit.  "Toul Omry"; French: "Toute ma vie" ), is a 2008 Egyptian film by Maher Sabry.  It is noted as being the first film to handle the subject of male homosexuality and the status of homosexuals in Egypt.  While a work of fiction, Sabry made efforts to use real-life influences from his own experiences to the 2001 arrests of the Cairo 52 to keep the portrayal of conditions for homosexuals in Egypt accurate.

Dragonwyck (film): Dragonwyck is a 1946 American period drama film made by Twentieth Century-Fox.  It was directed by Joseph L. Mankiewicz and produced by Darryl F. Zanuck and Ernst Lubitsch (uncredited) from a screenplay by Mankiewicz, based on the novel "Dragonwyck" by Anya Seton.  The music score was by Alfred Newman and the cinematography by Arthur C. Miller.  The film stars Gene Tierney, Walter Huston and Vincent Price.

People Will Talk: People Will Talk is a 1951 romantic comedy/drama film directed by Joseph L. Mankiewicz and produced by Darryl F. Zanuck from a screenplay by Mankiewicz, based on the German play by Curt Goetz, which had been made into a movie in Germany ("Doctor Praetorius", 1950).  Released by Twentieth Century Fox, the film stars Cary Grant and Jeanne Crain, with supporting performances by Hume Cronyn, Finlay Currie, Walter Slezak, and Sidney Blackmer.

Sleuth (1972 film): Sleuth is a 1972 British mystery thriller film directed by Joseph L. Mankiewicz and starring Laurence Olivier and Michael Caine.  The screenplay by playwright Anthony Shaffer was based on his 1970 Tony Award-winning play.  Both Olivier and Caine were nominated for Academy Awards for their performances.  This was Mankiewicz's final film.  Critics gave the film overwhelmingly positive reviews, and would later note similarities between it and Caine's 1982 film "Deathtrap".

Joseph L. Mankiewicz: Joseph Leo Mankiewicz (February 11, 1909 – February 5, 1993) was an American film director, screenwriter, and producer.  Mankiewicz had a long Hollywood career, and he twice won the Academy Award for both Best Director and Best Writing, Screenplay for "A Letter to Three Wives" (1949) and "All About Eve" (1950).

The Dummy (1929 film): The Dummy is a 1929 American comedy film directed by Robert Milton and written by Harriet Ford, Harvey J. O'Higgins, Herman J. Mankiewicz and Joseph L. Mankiewicz.  The film stars Fredric March, John Cromwell, Fred Kohler, Mickey Bennett, Vondell Darr, Jack Oakie and ZaSu Pitts.  The film was released on March 9, 1929, by Paramount Pictures.

Supporting paragraphs: Maher Sabry Joseph L. Mankiewicz
Answer: no