Question: Who co-wrote the film that Thomas Robsahm produced in 2015?

Context articles: Keith Diamond (songwriter)
Andrew Hollander
Scott Stevens (singer)
Shy Carter
Louder Than Bombs (film)
Margarete Robsahm
Jake Sinclair (musician)
Thomas Robsahm
Fred Robsahm
Veronica Mars (film)

Keith Diamond (born Keith Vincent Constantine Alexander; March 11, 1950 – January 18, 1997) was a songwriter and producer who worked with artists such as Donna Summer, Michael Bolton, Sheena Easton, Mick Jagger and Don Johnson.
 Diamond also produced and co-wrote Billy Ocean's "Suddenly," "Caribbean Queen (No More Love On The Run)," "Loverboy" and "Mystery Lady," as well as producing and managing groups such as Starpoint and Fredrick Thomas.
 Keith Diamond also produced and co-wrote James Ingram's album entitled "Never Felt So Good" in 1986, at the request of Quincy Jones who was tied up with scoring the film "The Color Purple".
Andrew Hollander is a songwriter, record producer, and film composer.
 Hollander has written and/or produced songs for Carly Rae Jepsen, New Politics, Jojo, Brian Elmquist (The Lone Bellow), Rozes, Laura Welsh, Natalie Hemby, Ali Tamposi, Babyface, White Rabbits, The Chevin, and C. Gibbs.
 He co-wrote 2 songs, "Thankful" and "Always Be Your Girl", on Celine Dion's chart topping album Loved Me Back to Life which reached #1 in 31 countries.
 Hollander co-wrote and co-produced 2 songs for Jacquie Lee's debut EP on Atlantic Records including the single Broken Ones.
 He recently co-wrote and co-produced "Goddess" for Stanaj (Republic/UMG/Lava), and co-wrote and produced "Runaways" (co-written and performed by Carly Rae Jepsen) for the upcoming Weinstein Co. animated film Ballerina aka "Leap!"
.
 As a pianist, he was honored to play piano on three albums by jazz legend Yusef Lateef.
Scott Stevens is an American-born songwriter, producer, singer and instrumentalist.
 In April 2015, he signed an exclusive publishing deal with Lava Music Publishing, a venture with Kobalt Publishing.
 He co-wrote eight songs on the 2015 Halestorm album, "Into the Wild Life", which debuted at #5 on the Billboard 200.
 Stevens also co-wrote, produced and mixed three songs for the 2015 Shinedown album "Threat to Survival".
 The former singer and guitarist for The Exies has scored five number one singles in the last year and a half, with hits from Halestorm, Nothing More and Skillet among them.
Shy Carter (born August 21, 1984), is an American songwriter, record producer, and singer.
 Recently, Shy has written for top acts such as Meghan Trainor, Jason Derulo, Charlie Puth, Faith Hill, Tim McGraw, and Billy Currington.
 He co-wrote Charlie Puth's two-time platinum hit "One Call Away" which hit No. 1 on "Billboard"'s Adult Top 40 chart.
 In 2009, he co-wrote "Someday" with Rob Thomas, which spent over 40 weeks in the Top 5 and became a No. 1 hit on "Billboard"' s Adult Top 40 chart. "
Stuck Like Glue", his collaboration with Sugarland, debuted on the "Billboard" Hot 100 at No. 20 and became the 11th most downloaded country music song of all time.
 He has also been featured on Latin artist Gloria Trevi's #1 song "Habla Blah Blah".
 He's also worked with Faith Hill, Ashanti, and Chingy.
 Carter also wrote a song titled "Bring it Back", which was released on August 7, 2015 and hit the Top 40 of "Billboard"'s Rhythmic chart.
Louder Than Bombs is a 2015 internationally co-produced drama film directed by Joachim Trier, and co-written with Eskil Vogt.
 The film stars Jesse Eisenberg, Gabriel Byrne, Isabelle Huppert, David Strathairn, and Amy Ryan.
Margarete Robsahm (born 9 October 1942) is a Norwegian model, actress and director.
 She is the mother of director Thomas Robsahm and sister of the actor Fred Robsahm.
 To an international audience, she is best known for her role in "Castle of Blood" with Barbara Steele, but she has also starred in Norwegian movies, among these "Line" from 1961.
 The movie was based on a novel by Axel Jensen and caused a minor scandal in Norway at the time, as Robsahm was the first actress ever to expose her breasts in a Norwegian movie.
Jake Sinclair (born March 7, 1985) is an American record producer, audio engineer, mixing engineer, multi-instrumentalist, vocalist, and songwriter.
 His production, engineering, songwriting, and mixing credits include Weezer, Fall Out Boy, Panic!
 at the Disco, 5 Seconds of Summer, Pink, New Politics, Andrew McMahon in the Wilderness, Gin Wigmore, and Train.
 Sinclair co-wrote and produced Panic!
 at the Disco's "Death of a Bachelor" album (which debuted at number one on the US Billboard 200) and produced Weezer's 2016 "Weezer (White Album)".
 Both were nominated for Best Rock Album at the 59th Annual Grammy Awards.
 He co-wrote and produced "Uma Thurman" by Fall Out Boy, which debuted at number one on the U.S. iTunes Chart, reached number 22 on the Billboard Hot 100, and was certified 2X Platinum by the RIAA in December 2015.
 Sinclair received a Grammy nomination for Album of the Year for his work as engineer and bassist on Taylor Swift's "Everything Has Changed" alongside producer Butch Walker.
 He co-wrote and produced the debut single, "She Looks So Perfect" by 5 Seconds of Summer that peaked at number one in over five countries and won "Song of the Year" at the 2014 ARIA Awards.
 Sinclair is the former bassist of the indie/pop rock band The Films and the lead singer and producer of the indie pop duo Alohaha.
Thomas Robsahm (born 29 April 1964) is an Italian-Norwegian actor, film director and producer.
 He is the son of actors Ugo Tognazzi and Margarete Robsahm, and lives together with screenwriter and actress Silje Holtet.
 Among his films are "Svarte pantere " from 1992, and a documentary on the footballer Erik Mykland from 1996.
 His film "S.O.S." was awarded the Amanda Award for best Norwegian film in 2000.
 In 2009 he produced the film "Angel".
 In 2015 he produced the film "Louder Than Bombs" by Joachim Trier.
Fred Otto Robsahm (29 June 1943 - 26 March 2015) is a Norwegian film actor.
 He worked on a few Italian spaghetti westerns in the 1960s and 1970s.
 He was married to Italian film diva Agostina Belli for 15 years.
 The story of Robsahm's life was told by Even Benestad in the documentary "Natural Born Star", which premiered in 2007.
 His sister is the model, director and editor Margarete Robsahm.
Veronica Mars is a 2014 American neo-noir mystery comedy-drama film produced and directed by Rob Thomas, who co-wrote the script with Diane Ruggiero.
 It is a continuing film adaptation based on Thomas' UPN/CW television series of the same name and stars Kristen Bell reprising her role as the title character.
 Its executive producers are Joel Silver, Bell, and Jenny Hinkey.
 Warner Bros.
 Pictures opened the film in the United States in a limited release and through video on demand on March 14, 2014.