Title: Yellow (2006 short film)
Content:  Yellow was written by Terri Tatchell and Neill Blomkamp. Production was done at RSA Production, which is owned by director Ridley Scott. Trent Opaloch, who also worked with Blomkamp on the film District 9, was the Director of Photography. Visual effects were done by Blomkamp's own VFX company Ratel. The score was written by Gary Pozner. The film includes actors Julien Phipps, Giddon Karmel, Jason Bell, Jason Lee, Bob Dong, Hamish Cameron and Irene Astle.
Title: Yellow (2012 film)
Content:  Yellow is a 2012 American drama film directed by Nick Cassavetes and written by Cassavetes and Heather Wahlquist. The film stars Wahlquist, Riley Keough, Sienna Miller, David Morse, Ray Liotta, Melanie Griffith and Lucy Punch. Yellow premiered at the 2012 Toronto International Film Festival, and had a limited release in the United States on August 29, 2014.
Title: Yellow (2014 film)
Content:  Yellow is a 2014 Marathi film directed by Mahesh Limaye and produced by Riteish Deshmukh and Uttung Thakur. The story explores a mother/daughter relationship involving developmental disability and childlike behaviour. The directorial debut film is based on a true story of Gauri Gadgil, a child with special needs, who also plays herself in the film. The film was released on 4 April 2014 to critical acclaim. The film second film of actor Riteish Deshmukh as producer after Balak-Palak (2013). At the 61st National Film Awards, it won the Special Jury Award, while the child actors Gauri Gadgil and Sanjana Rai received Special Mention.
Title: Yellow (2006 feature film)
Content:  Yellow is a 2006 film directed by Alfredo De Villa and starring Roselyn Sanchez, Bill Duke, and D. B. Sweeney.
Title: The Yellow Birds (film)
Content:  David Lowery first adapted the book into a screenplay and was originally tapped to direct, but had to drop out because of a scheduling conflict with Pete's Dragon. Once Alexandre Moors replaced Lowery as director, Moors' Blue Caprice screenwriter R.F.I. Porto was brought on to revise the script. Benedict Cumberbatch and Will Poulter were originally cast but they dropped out after the project was delayed and were replaced by Jack Huston and Alden Ehrenreich. The title song was written by John Mellencamp. Principal photography on the film began in October 2015 in Morocco,  and it wrapped up on January 29, 2016.
Title: Yellow (2012 film)
Content: Heather Wahlquist as Mary Holmes ; Riley Keough as Young Amanda ; Sienna Miller as Xanne ; David Morse as Psychologist ; Ray Liotta as Afai ; Melanie Griffith as Patsy ; Lucy Punch as Amanda ; Max Thieriot as Young Nowell ; Elizabeth Daily as Aunt Netty ; Daveigh Chase as Young Mary ; Gena Rowlands as Mimi ; Cassandra Jean as Becky ; Brendan Sexton III as Nowell ; Jordan Flash Rose as Chad ; Gary Stretch as Jimmy Carpenito Snr ; Onata Aprile as Linda ; Bella Dayne as Ashley ; Malea Rose as Zadora ; Nancy De Mayo as Miss Withrow ; Tonya Cornelisse as Starla 
Title: The Yellow Arm
Content: Juanita Hansen as Suzanne Valette ; Warner Oland as Joel Bain ; Marguerite Courtot as Doris Bain ; Stephen Carr as Jack Bain ; William Bailey as Jerry Engleson ; Tom Keith as Alan Marsh 
Title: Yellow (2006 short film)
Content:  Yellow or Adicolor Yellow is a 2006 futuristic short film by director Neill Blomkamp, written by Terri Tatchell and Blomkamp. It was produced at the request of sportswear maker Adidas as a part of its "Adicolor" viral ads campaign, in which advertising agency IDEALOGUE gathered seven directors, assigning a different color to each of them, and asked them to produce a feature based on their emotional and creative response to the given color, later to be distributed in the form of podcasts. The four-minute film, shot by Trent Opaloch in Blomkamp's usual handheld camera mockumentary style, deals with an Israeli military robot gone rogue.
Title: Yellow Fin (film)
Content: Wayne Morris as Mike Donovan ; Adrian Booth as Nurse Jean Elliott ; Gloria Henry as Nina Torres ; Gordon Jones as Breck ; Damian O'Flynn as Capt. John Donovan ; Warren Douglas as Dr. Steve Elliott ; Rick Vallin as Jan ; Nacho Galindo as Murica ; Paul Fierro as Mano ; Guy Zanette as Larson ; Stanley Blystone as Husky Seaman at Table 
Title: A Yellow Bird
Content:  A Yellow Bird is a 2016 Singaporean-French drama film directed and co-written by K. Rajagopal and starring Sivakumar Palakrishnan, Huang Lu, and Seema Biswas. It was screened in the International Critics' Week section at the 2016 Cannes Film Festival.

Question: Who was the screenwriter for Yellow?
Answer: Terri Tatchell.
Neill Blomkamp.