Title: McCabe &amp; Mrs. Miller
Content:  Maddow, a well-known poet and screenwriter. In 1969, Altman was in post-production on M*A*S*H and sneaked Foster into the screening; Foster liked the film, and signed Altman to direct a film based on McCabe. They agreed to wait until M*A*S*H became a box-office hit to take the pitch for McCabe to a studio for funding. A second screenplay – independent of Maddow's – was commissioned from Brian McKay, who completed it in only five weeks. A revised version of that screenplay dated July 1970 became the "shooting script" for the film. Altman and McKay are listed in the film's credits as its screenwriters; Maddow 
Title: M. M. Musselman
Content:  Morris McNeil Musselman (February 19, 1899 - April 22, 1952) was a Hollywood screenwriter and author.
Title: Herman J. Mankiewicz
Content:  Newspaperman (uncredited) ; Rise and Shine (1941) — Writer (screenplay) ; This Time for Keeps (1942) — Writer (characters) ; The Pride of the Yankees (1942) — Writer (screenplay) ; Stand By for Action (1942) — Writer (screenplay) ; The Good Fellows (1943) — Writer (play) ; Christmas Holiday (1944) — Writer ; The Enchanted Cottage (1945) — Writer ; The Spanish Main (1945) — Writer (screenplay) ; A Woman's Secret (1949) — Writer (screenplay), producer ; The Pride of St. Louis (1952) — Writer ; Lux Video Theatre (TV series episode, 1955): The Enchanted Cottage — Writer (original screenplay) He was involved with the following films: 
Title: Herman J. Mankiewicz
Content:  Writer (adaptation) ; Man of the World (1931) — Writer (screenplay) (story) ; Ladies' Man (1931) — Writer ; Monkey Business (1931) — producer (uncredited) ; The Lost Squadron (1932) — Writer (additional dialogue) ; Dancers in the Dark (1932) — Writer ; Girl Crazy (1932) — Writer ; Million Dollar Legs (1932) — producer ; Horse Feathers (1932) — producer (uncredited) ; Another Language (1933) — Writer ; Dinner at Eight (1933) — Writer (screenplay) ; Meet the Baron (1933) — Writer ; Duck Soup (1933) — producer (uncredited) ; The Show-Off (1934) — Writer ; Stamboul Quest (1934) — Writer (screenplay) ; After Office Hours 
Title: Herman J. Mankiewicz
Content:  Herman Jacob Mankiewicz (November 7, 1897 – March 5, 1953) was an American screenwriter who, with Orson Welles, wrote the screenplay for Citizen Kane (1941). Earlier, he was a Berlin correspondent for Women’s Wear Daily, assistant theater editor at The New York Times, and the first regular drama critic at The New Yorker. Alexander Woollcott said that Herman Mankiewicz was the "funniest man in New York". Both Mankiewicz and Welles received Academy Awards for their screenplay. Mankiewicz was often asked to fix the screenplays of other writers, with much of his work uncredited. Occasional flashes of what came to be called the "Mankiewicz humor" and satire distinguished his films, and became valued in the films of 
Title: M*A*S*H (film)
Content:  The screenplay, by Ring Lardner Jr., is different from Hooker's original novel. In the DVD audio commentary, Altman describes the novel as "pretty terrible" and somewhat "racist" (the only major black character has the nickname "Spearchucker"). He claims that the screenplay was used only as a springboard. Despite this assertion by Altman, however, while some improvisation occurs in the film and Altman changed the order of major sequence, most sequences are in the novel. The main deletion is a subplot of Ho-Jon's return to the 4077th as a casualty (when Radar steals blood from Henry, it is for Ho-Jon's operation under Trapper and Hawkeye's scalpels; when the surgeons are playing poker after the football game, they are resolutely ignoring Ho-Jon's corpse being driven away). The main deviation from the script is 
Title: Mad Max (film)
Content:  screenwriter James McCausland (who appears in the film as the bearded man in an apron in front of the diner). According to Miller, his interest while writing Mad Max was "a silent movie with sound", employing highly kinetic images reminiscent of Buster Keaton and Harold Lloyd while the narrative itself was basic and simple. Miller believed that audiences would find his violent story more believable if set in a bleak dystopian future. Miller knew little about writing a script, but he had read Pauline Kael’s essay "Raising Kane" and concluded that most major American scriptwriters, like Herman Mankiewicz and Ben Hecht, were former journalists. So 
Title: Herman J. Mankiewicz
Content:  well as the dialogue for The Dummy, as well as scripts for many directors, including William Wellman and Josef von Sternberg. Other screenwriters made large contributions, too, but "probably none larger than Mankiewicz," according to Kael. At the beginning of the sound era he was one of the highest-paid writers in the world, because, Kael writes, "he wrote the kind of movies that were disapproved of as 'fast' and immoral. His heroes weren't soft-eyed and bucolic; he brought good-humored toughness to the movies, and energy and astringency. And the public responded, because it was eager for modern American subjects." He was described as 
Title: My Dear Miss Aldrich
Content:  The film was written by Herman J. Mankiewicz. It was one of a number of scripts written by Mankiewicz early in his career which film historian Charles Higham called "hackwork" and "manufactured...written without enthusiasm". The director was George B. Seitz, a director best known for the gentle and bland "Andy Hardy" series of family comedies which starred Mickey Rooney.
Title: Michael Green (writer)
Content:  Michael Green is an American writer and producer. In addition to writing for television, Green has written or co-written several feature film screenplays, including Logan, Alien: Covenant, Blade Runner 2049 and Murder on the Orient Express, all in 2017. For Logan, which he co-wrote with James Mangold and Scott Frank, Green was nominated for an Academy Award for Best Adapted Screenplay.

Question: Who was the screenwriter for M?
Answer: Fritz Lang.
Friedrich Christian Anton Lang.
Friedrich Christian Anton "Fritz" Lang.
Fritz Lang (1890-1976).
Thea von Harbou.
Thea Gabriele von Harbou.