Title: Dallas (1978 TV series, season 7)
Content:  The number of writers employed on this season is dramatically decreased from previously, with only three active writers throughout the season: showrunner Leonard Katzman, and longtime Dallas writers Arthur Bernard Lewis and David Paulsen. The production team remains the same for the third consecutive year: Philip Capice serves as executive producer, Katzman as producer, Cliff Fenneman as associate producer, and writer Arthur Bernard Lewis as supervising producer. Additionally, writer David Paulsen continues as story editor.
Title: Dallas (1978 TV series, season 2)
Content:  Series creator David Jacobs writes the first two episodes of the season, introducing the characters of Gary and Valene, and continues as creative consultant until halfway through the season, when he left Dallas to create Knots Landing. Producer Leonard Katzman writes and direct his first episodes, and replaces Jacobs as showrunner, remaining on the show until its closure in 1991. Additional writers include the returning Camille Marchetta and Arthur Bernard Lewis, as well as newcomers Darlene Craviotto, Jim Inman, Worley Thorne, Rena Down, D. C. Fontana and Richard Fontana. Lee Rich and Philip Capice continue to serve as executive producers. Katzman serves as producer, and Cliff Fenneman as associate producer. Arthur Bernard Lewis was promoted executive story editor, with Camille Marchetta serving as story editor.
Title: The British Invasion (Dexter)
Content:  Dexter staff writers Daniel Cerone and Melissa Rosenberg were initially planning to write the script of the finale together. They were in the process of developing the story, however, when Rosenberg was hired to write the film adaptation of the novel Twilight. She described Cerone as "incredibly understanding" when she asked him to write the teleplay himself, though they had both worked on the episode's story. The writers planned from the pilot episode to eventually kill Doakes off the show. Executive producer Clyde Phillips said that Doakes "always had a shelf life because of the collision course [with Dexter]", while executive producer Sara Colleton believed it would be unrealistic to keep Doakes on for a third season without having him discover that Dexter is a murderer. Rosenberg said that risks had to be taken on the 
Title: Dreams on Spec
Content:  The film follows three aspiring screenwriters as they struggle to turn their scripts into movies. David is a hip talent agent's assistant with three scripts circulating around town. He's plugged into "young Hollywood" - and when he's not working or writing, he's usually hanging out at the beach. Joe is a middle-aged family man who has split time over the last three years between caring for his autistic daughter and writing what he believes could be the great American screenplay. And Deborah is trying to become one of the few African-American women to ever write and direct a feature film, though she's struggling just to pay her bills while she searches for money to produce her script. Between these stories, the film intercuts critical insight from such Hollywood screenwriters as James L. Brooks, Nora Ephron, Carrie Fisher, Gary Ross, Steven E. de Souza, Ed Solomon, Paul Guay, Scott Alexander and Larry Karaszewski.
Title: Screenwriting
Content:  ; Seven Psychopaths (2012)&mdash;In this satire, written and directed by Martin McDonagh, Colin Farrell plays a screenwriter who is struggling to finish his screenplay Seven Psychopaths, but finds unlikely inspiration after his best friend steals a Shih Tzu owned by a vicious gangster. ; Trumbo (2015)&mdash;Highly successful Hollywood screenwriter Dalton Trumbo, played in this biopic by Bryan Cranston, is targeted by the House Un-American Activities Committee for his socialist views, sent to federal prison for refusing to cooperate, and blacklisted from working in Hollywood, yet continues to write and subsequently wins two Academy Awards while using pseudonyms. Screenwriting has been the focus of a number of films: 
Title: Darrell Ware
Content:  Darrell Ware (1906–1944) was an American screenwriter and film producer. Ware and Karl Tunberg were nominees for the Academy Award for Best Original Screenplay at the 14th Academy Awards for their film Tall, Dark, and Handsome. Ware wrote and contributed to the writing of several films starring Shirley Temple while he was under contract to 20th Century Fox. Ware joined Paramount Studios in 1942, where he wrote for film stars including Bing Crosby, Alan Ladd, and Paulette Goddard. As a senior at Northwestern University in 1929, Ware co-wrote the script for and staged the college musical comedy that became "The Waa-Mu Show".
Title: Dallas (1978 TV series, season 8)
Content:  Showrunner Leonard Katzman, Arthur Bernard Lewis and David Paulsen remain the core writers, although Peter Dunne, in preparation for taking over showrunning duties during the following season, writes two episodes in place of Leonard Katzman. For the fourth consecutive year, the production team remains the same: Philip Capice serves as executive producer, Katzman as producer, Cliff Fenneman as associate producer, and writer Arthur Bernard Lewis as supervising producer. After two years as story editor, writer David Paulsen is now billed executive story editor.
Title: 64th Writers Guild of America Awards
Content: The Girl with the Dragon Tattoo — Screenplay by Steven Zaillian; Based on the novel by Stieg Larsson, originally published by Norstedts; Columbia Pictures ; The Help — Screenplay by Tate Taylor; Based on the novel by Kathryn Stockett; DreamWorks Pictures ; Hugo — Screenplay by John Logan; Based on the book The Invention of Hugo Cabret by Brian Selznick; Paramount Pictures ; Moneyball — Screenplay by Steven Zaillian and Aaron Sorkin; Story by Stan Chervin; Based on the book by Michael Lewis; Columbia Pictures The Descendants — Screenplay by Alexander Payne and Nat Faxon & Jim Rash; Based on the novel by Kaui Hart Hemmings; Fox Searchlight 
Title: Dallas (1978 TV series)
Content:  As of the season 10 premiere, there was another major overhaul of the crew, with Leonard Katzman not only returning to the production side of the show but also getting promoted to executive producer, reportedly on the condition that he would get "total authority" of the show, while Philip Capice and most of the season 9 staff left the production. Alongside Katzman, David Paulsen was brought back as the show's new producer, while the position as supervising producer was offered to newcomer Calvin Clements Jr. and Cliff Fenneman remained associate producer. A new writing staff was hired to work alongside the producers, including Katzman's son Mitchell Wayne Katzman as story editor and Leah Markus as story consultant. Markus left after two years, while the others remained until the show's end. 
Title: Dell City, Texas
Content:  The filmmaker Josh Carter, beginning circa 2002, assisted the creation of four films created by natives of Dell City, and he spliced them into a single work called Tales from Dell City, Texas, released in 2012. Catsoulis wrote that the film "immortalizes a dusty slice of vanishing Americana, delivering a parched ode to hard work, endurance and desert dreams."

Question: Who was the screenwriter for The Delta?
Answer: Ira Sachs.