Title: David Dalessandro
Content:  David Dalessandro is a University of Pittsburgh administrator, currently serving as the associate vice chancellor of university development. Outside of his service to the Pitt community, Dalessandro is best known as the unlikely creator of Snakes on a Plane. Citing as inspiration an article he read about World War II pilots having trouble in the Pacific with snakes sneaking into cargo holds, he penned the original screenplay for the 2006 Samuel L. Jackson thriller in 1992 and developed the script for the following years. In 1995, Dalessandro pitched the script to 30 different movie studios and was rejected by all of them, until New Line Cinema accepted it in 2004. On the reason he wrote the screenplay Dalessandro has said: "People say, 'I hate snakes and I 
Title: Dave (film)
Content:  Producer Lauren Shuler Donner and screenwriter Gary Ross had known each other since taking a Stella Adler class in the 1970s, and in 1988 Ross told Shuler Donner his idea for Dave. Ross wrote the script while working on the Michael Dukakis presidential campaign during the 1988 election, and he was inspired by the Iran-contra affair. Ross also received advice from First Lady Barbara Bush's press secretary Anna Perez. Shuler-Donner approved it, but her employer Walt Disney Productions refused to release it while a conservative such as Ronald Reagan or George H. W. Bush held the presidency. Warner Bros. bought the project 
Title: The Divergent Series
Content:  Snow White and the Huntsman screenwriter Evan Daugherty and Hope Springs screenwriter Vanessa Taylor co-wrote the screenplay for Divergent. During the time that Neil Burger was originally going to direct the sequel, Brian Duffield was recruited to write the screenplay for The Divergent Series: Insurgent, but after Burger dropped out of the film and Robert Schwentke took over as director, he brought in Akiva Goldsman and Mark Bomback to rewrite Duffield's script. The screenplay for the two-part finale, The Divergent Series: Allegiant and Ascendant, was written by Noah Oppenheim, Adam Cooper, Bill Collage, and Stephen Chbosky.
Title: Death Smiles on a Murderer
Content:  actor." The film credits the script to D'Amato, Romano Scandariato and Claudio Bernabei; the latter was said to just be a typist by Scandariato. The story is credited to D'Amato, which Scandariato said was "more or less one page." Scandariato stated the film was originally written with more suspense and as more of a giallo, but this was changed out of necessity. D'Amato later claimed he wrote the screenplay entirely on his own, saying in an interview "I'm afraid it's a very imperfect film.....but this is due to the fact that I wrote the script on my own. When you don't work with someone else....it's much harder to come up with a good 
Title: Dhuwan
Content:  Ashir Azeem wrote the script for Dhuwan during his time at the Civil Services Academy where he met several police personnel. Being inexperienced at writing scripts for television, Azeem initially wrote the story in the form of a novel and later developed it into a formal script on the advice of a television executive. Azeem's work was primarily written in English and PTV's in-house screenwriters had to translate it into an Urdu script. Azeem later revealed that the translated screenplay couldn't completely realise his conceptualisation and he had to rework some parts.
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: Deborah Davis (screenwriter)
Content:  Deborah Davis is a British historian and screenwriter.
Title: Darin Morgan
Content:  On August 11, 2004, it was announced that Morgan and screenwriter Sam Hamm were writing an untitled screenplay under development by DreamWorks SKG. According to The Hollywood Reporter, the story "concerns a marriage counselor, whose daughter is about to get married, who discovers that his future son-in-law is suffering from the delusion that he's a superhero." Morgan worked on the second episode of former X-Files producer Frank Spotnitz's Kolchak: The Night Stalker remake, as consulting producer, though the show was canceled before any of Morgan's scripts were produced. The only script that Morgan wrote before the show was canceled was called "The M Word". It concerned a serial killer and a were-lizard, who may or may not be 
Title: D. C. Moore
Content:  David "D. C." Moore (born 1980) is a British playwright and television screenwriter.
Title: Clive Dawson
Content:  Clive Dawson is a screenwriter working in film and television. His credits include a number of the UK's top-rated television shows including The Bill and Casualty. He was also the creator and sole writer of the original motion picture screenplay for the theatrical feature-film, The Bunker. His latest project is a feature-length adaptation of Sydney J. Bounds' sci-fi short story "The Animators", directed by Oscar-nominated Ruairi Robinson and produced by Qwerty Films.

Question: Who was the screenwriter for Da?
Answer: Hugh Leonard.