Title: Hell's Angels (film)
Content:  Hell's Angels had been originally conceived as a silent, with James Hall and Ben Lyon as Roy and Monte Rutledge, and Norwegian silent film star Greta Nissen cast as Helen, the female lead, and was to be directed by Marshall Neilan. Principal photography began on October 31, 1927 with interiors shot at the Metropolitan Studio in Hollywood. A few weeks into production, however, Hughes' overbearing production techniques forced Neilan to quit. Hughes first hired Luther Reed, on loan from Paramount but still was in conflict over directing roles before hiring a more pliable director, Edmund Goulding, but took over the directing reins when it came to the frenetic aerial battle 
Title: Angels from Hell
Content:  Angels from Hell is a 1968 action film directed by Bruce Kessler and starring Tom Stern and Arlene Martel. It was the first film produced by Joe Solomon's Fanfare Films, a firm Solomon had created with the profits from three previous biker films. The film was shot in Bakersfield, California. The screenplay was written by Jerome Wish, and the film used music by the Peanut Butter Conspiracy and the Lollipop Shoppe.
Title: The Wild Angels
Content:  Roger Corman became interested in making a film about the Hells Angels after seeing a photo of a biker funeral in the January 1966 issue of Life magazine. Corman approached AIP, Charles B. Griffith was hired to write a screenplay. Griffith's first draft was a near-silent movie which contrasted the bikers with the story of a police motorcycle cop. Corman did not like it and had Griffith rewrite it. Corman still was not happy and gave it to Peter Bogdanovich to rewrite. Bogdanovich had met Corman socially and agreed to write an adventure script in the vein of Lawrence of Arabia or Bridge on the River Kwai "only cheap"; Corman pulled Bogdanovich off that project and paid him $300 to work on Wild Angels. Bogdanovich later estimated he rewrote 80% of the script. He later directed second unit and did various other odd jobs.
Title: Hell's Angels (film)
Content:  Hell's Angels is a 1930 American pre-Code independent epic war film directed and produced by Howard Hughes and director of dialogue James Whale. Written by Harry Behn and Howard Estabrook and starring Ben Lyon, James Hall and Jean Harlow, it was released through United Artists. It follows two dissimilar brothers, both members of the British Royal Flying Corps during the First World War. The film was originally shot as a silent film, but it was still unfinished after a year and a half, by which time The Jazz Singer had premiered, signaling the start of the sound era. Hughes converted his film to 
Title: Hell's Angels '69
Content:  Hell's Angels '69 is a 1969 Outlaw biker film directed by Lee Madden and Conny Van Dyke. The film stars Tom Stern, Jeremy Slate, Conny Van Dyke, and Steve Sandor.
Title: Hell's Angels '69
Content: Tom Stern as Chuck ; Jeremy Slate as Wes ; Conny Van Dyke as Betsy ; Steve Sandor as Apache ; Sonny Barger as Sonny ; Clifford Workman as Skip ; Tiny Walters as Tiny ; Charles Tinsley as Charlie Magoo ; John Terence Tracy as Terry The Tramp aka Tramp ; The Oakland Hells Angels as Themselves ; G.D. Spradlin as Detective 
Title: Ben Myron
Content:  Projects in development include, Hell's Angel, based on Hells Angels' founder, Sonny Barger's autobiography, to be directed by Tony Scott for 20th Century Fox.
Title: Marshall Neilan
Content:  1927 he wrote the original story for the Howard Hughes film, Hell's Angels. Initially, he had also been hired as the film's director, back when it was still a silent, but Hughes' overbearing style forced him to drop out, and he was replaced a few weeks into production by a more pliable director, Edmund Goulding; due to massive reshoots (as well as the recasting of the lead role with Jean Harlow), none of the footage Neilan shot made it into the final film. He was then hired by Hal Roach Studios, for whom he directed a few films in 1930, and he made his final directorial effort in 1937. Having 
Title: Hell's Angels (film)
Content:  but the mundane plot and maudlin characterizations were also noted. The Hell's Angels screening revealed many traits of pre-code Hollywood. In addition to some fairly frank sexuality, there was a surprising amount of adult language (for the time) during the final dogfight sequence, e.g. "son of a bitch", "goddamn it", and "for Christ's sake", along with the words "ass", "hell", and a few uses of "God" in other scenes. While Harlow, Lyon and Hall received mixed reviews for their acting, Hughes was praised for his hard work on the filming and aircraft sequences. Mourdant Hall, reviewer for The New York Times, was especially critical about Harlow's performance, saying, "his film is absorbing and exciting. But 
Title: Hell's Angels: The Strange and Terrible Saga of the Outlaw Motorcycle Gangs
Content:  Hell's Angels: The Strange and Terrible Saga of the Outlaw Motorcycle Gangs is a book written by Hunter S. Thompson, published in 1967 by Random House. It was widely lauded for its up-close and uncompromising look at the Hells Angels motorcycle club, during a time when the gang was highly feared and accused of numerous criminal activities. The New York Times described Thompson's portrayal as "a world most of us would never dare encounter." It was Thompson's first published book and his first attempt at a nonfiction novel.

Question: Who was the screenwriter for Hell's Angels?
Answer: Howard Estabrook.