Title: One Day (novel)
Content:  One Day is a novel by David Nicholls, published in 2009. Each chapter covers the lives of two protagonists on 15 July, St Swithin's Day, for 20 years. The novel attracted generally positive reviews and was named 2010 Galaxy Book of the Year. Nicholls adapted his book into a screenplay; the feature film, was released in August 2011.
Title: Day One (2015 film)
Content:  Day One is a short film directed and co-written by Henry Hughes with Dawn DeVoe. A woman who is on her first day of working as an interpreter for the United States Army is forced to deliver a baby for the wife of an enemy bomb maker. It was made as a thesis film at the AFI Conservatory. In 2016, the movie was nominated for the Academy Award for Best Live Action Short Film at the 88th Academy Awards.
Title: One Day (novel)
Content:  At the time of the book's publication, Nicholls wrote that he was adapting his novel as a film script. He acknowledged the difficulties in casting people who "could be both students and middle-aged! But I think we've found a way." The film was directed by Lone Scherfig for Random House Films and Focus Features, with a theatrical release in August 2011. Anne Hathaway and Jim Sturgess portrayed Emma and Dexter, respectively. Filming took place in England, Scotland, and France.
Title: Day One (1989 film)
Content:  Day One is a made-for-TV documentary-drama movie about The Manhattan Project, the research and development of the atomic bomb during World War II. It is based on the book by Peter Wyden. The movie was written by David W. Rintels and directed by Joseph Sargent. It starred Brian Dennehy as General Leslie Groves, David Strathairn as Dr. J. Robert Oppenheimer and Michael Tucker as Dr. Leo Szilard. It premiered in the United States on March 5, 1989 on the CBS network. It won the 1989 Emmy award for Outstanding Drama/Comedy Special. The movie received critical acclaim for its historical accuracy despite being a drama.
Title: One Day (2017 film)
Content:  One Day is a 2017 South Korean drama film directed by Lee Yoon-ki and starring Kim Nam-gil and Chun Woo-hee. The film was released on April 5, 2017.
Title: One Day (2011 film)
Content:  One Day is a 2011 romantic drama film directed by Lone Scherfig from a screenplay by David Nicholls, based on Nicholls' 2009 novel of the same name. It stars Anne Hathaway and Jim Sturgess, with Patricia Clarkson, Ken Stott and Romola Garai in supporting roles. It was released in the United States on 19 August 2011 by Focus Features and in the United Kingdom on 24 August 2011 by Universal Pictures.
Title: One Day (2011 film)
Content:  The film is a co-production between Random House Films and Focus Features. Film4 Productions is co-financing. Actress Anne Hathaway said she was clandestinely given the script as the film was set in the United Kingdom and director Scherfig was not looking for any American actresses for the part. Hathaway flew to London for a meeting with Scherfig to explain why she should get the part. Hathaway later said it was "the worst meeting of my life... I was just inarticulate", but on leaving Hathaway wrote out a list of songs for Scherfig to listen to, saying, "I clearly didn't communicate to you what I needed to today. But I think these songs can do it for me." Scherfig did listen to them, which led to Hathaway getting the part. Principal photography commenced in July 2010. Filming took place on 
Title: One Perfect Day (2004 film)
Content: Paul Currie .... director & writer ; Chip Richards... writer ; David Hobson .... original music score composer ; Paul van Dyk... additional music score 
Title: One Day (2010 film)
Content:  One Day (有一天) is a 2010 Taiwanese film directed by Hou Chi-jan.
Title: One Wonderful Day
Content:   "One Wonderful Day" was directed by Larry Shaw and written by John Pardee, Joey Murphy, series creator Marc Cherry, Tom Spezialy, and Kevin Murphy. It was filmed in April 2005. The writers were still working on the script when filming began; as a result, the ending narration was written based on the visuals that had been filmed. The episode focused largely on the conclusion of the Mary Alice mystery storyline. Cherry had wanted there to be a "definite end" to the mystery, hoping to avoid similar viewer fatigue that Twin Peaks suffered after drawing out its central mystery past its first season. The storyline relied on two flashback sequences, which featured Jolie 

Question: Who was the screenwriter for One Day?
Answer: David Nicholls.
David Alan Nicholls.