Title: The Social Network (soundtrack)
Content: Trent Reznor and Atticus Ross – composition, arrangements, performance, programming, and production ; Adrian Belew – additional guitar ( 3, 14 ) {Ghosts I–IV: 35 Ghosts IV, 14 Ghosts II} ; Edvard Grieg – composition (on "In the Hall of the Mountain King") ; Blumpy – engineer ; Michael Patterson – mixing ; Rob Sheridan – design ; Tom Baker (at Precision Mastering, Hollywood, CA) – mastering David Fincher – executive producer ; Lia Vollack (for Columbia Pictures) – executive in charge of music ; Rebel Waltz, Inc. – Trent Reznor and Null management ; First Artists Management – Atticus Ross management Credits for The Social Network adapted from liner notes:  
Title: The Social Network (soundtrack)
Content:  When Trent Reznor was originally asked by director David Fincher to score The Social Network, he initially declined, partly due to just finishing up a long touring and recording schedule. After further reflecting, Reznor apologized and told Fincher to keep him in consideration, to which he told Reznor that he had been waiting for him to accept. On July 1, 2010, Reznor publicly announced that he and Ross were taking part in the soundtrack on nin.com: "I was planning on taking some time off after the continual waves of touring that ended last fall and spend this year experimenting around with what would become How to Destroy Angels and some new NIN. Well, that plan didn't work out so well. David Fincher 
Title: The Social Network (soundtrack)
Content:  The Social Network is the score album for David Fincher's 2010 film of the same name, composed by Trent Reznor and Atticus Ross. It was released on September 28, 2010, through The Null Corporation. On September 17, a five-track sampler was also made available for free. The score bears a similar sound to the previous Reznor/Ross 2008 collaboration, Ghosts I–IV, and even features two slightly reworked tracks from Ghosts; the track "Magnetic" (reworked from "14 Ghosts II") and "A Familiar Taste" (a remixed version of "35 Ghosts IV"). The soundtrack received positive reviews from critics, and widespread acclaim across the film industry. The score won nine major awards, including the 2010 Golden Globe award for Best Original Score – Motion Picture, and the Academy Award for Best Original Score at the 83rd Academy Awards.
Title: The Social Network
Content:  The Social Network is a 2010 American biographical drama film directed by David Fincher and written by Aaron Sorkin. Adapted from Ben Mezrich's 2009 book The Accidental Billionaires, it portrays the founding of social networking website Facebook and the resulting lawsuits. It stars Jesse Eisenberg as founder Mark Zuckerberg, along with Andrew Garfield as Eduardo Saverin, Justin Timberlake as Sean Parker, Armie Hammer as Cameron and Tyler Winklevoss, and Max Minghella as Divya Narendra. Neither Zuckerberg nor any other Facebook staff were involved with the project, although Saverin was a consultant for Mezrich's book. Production of the film began in 2009, 
Title: The Social Network (soundtrack)
Content:  The first track from the soundtrack, "Hand Covers Bruise (No Piano)" debuted on The Social Network's website on August 30, 2010, streaming in the background. The album was released by The Null Corporation and distributed by Sony Music. A five-track sampler for the album was released on September 17, on The Null Corporation's homepage. On the day of the five-track sampler's launch, Reznor posted about the release on the Null Corporation's site: "This is what Atticus and I have been working on for the last few months. We had a great time working with David Fincher on this and the film turned out excellent - something we're very proud of. It opens in theaters Oct 1 and you should check 
Title: The Social Network
Content:  Casting began in mid-2009, with Jesse Eisenberg, Justin Timberlake, and Andrew Garfield announced to star. Jonah Hill was in contention for Timberlake's role, but director David Fincher passed on him. In October 2009, Brenda Song, Rooney Mara, Armie Hammer, Shelby Young, and Josh Pence were cast. Max Minghella and Dakota Johnson were also confirmed. In a 2009 interview with The Baltimore Sun, Eisenberg said, "Even though I've gotten to be in some wonderful movies, this character seems so much more overtly insensitive in so many ways that seem more real to me in the best way. I don't often get cast as insensitive people, so it feels very comfortable: fresh and exciting, as if you never have to worry about the audience. Not that I worry about the audience anyway – it should be just the furthest thing from your mind. The Social Network is the biggest relief I've ever had in a movie". In 2010, it was mentioned that Rashida Jones would appear as Marylin Delpy.
Title: Trent Reznor
Content:  Bullet Man from Shinya Tsukamoto.  Reznor collaborated with Ross to compose the score for David Fincher's The Social Network, a 2010 drama film about the founding of Facebook. Says Reznor, "When I actually read the script and realized what he was up to, I said goodbye to that free time I had planned." The score was noted for portraying "Mark Zuckerberg the genius, developing a brilliant idea over ominous undertones," and received nearly unanimous praise. The film's score was released in October 2010 in multiple formats, including digital download, compact disc, 5.1 surround on Blu-ray, and vinyl record. A 5-song 
Title: The Social Network (soundtrack)
Content:  tracks fully encapsulates Mark Zuckerberg's – and Aaron Sorkin's – vision"; he commended the score for its "profound simplicity atop [the] turbulent background, whilst giving inventive modernity to other settings" and for portraying "Zuckerberg the genius, developing a brilliant idea over ominous undertones". Much less enthusiastic was Christian Clemmensen, member of the International Film Music Critics Association and editor of Filmtracks, who said the score was "as redundantly insufferable as any score in recent memory, with no standout cues, no beginning, no end, no suspense, no adversity, and, most importantly, no sense of accomplishment". He awarded the score the very rare rating of FRISBEE, the lowest Filmtracks rating.
Title: Dana Brunetti
Content:  Vegas resulted in Saverin and his friends meeting with Brunetti and Mezrich again. Brunetti made sure to have Kevin Spacey attend the premiere and after party as well to ensure that their Facebook-related project would have all the momentum it needed. The 14-page proposal by Mezrich resulted in a movie being sold to Sony that became The Social Network. In 2011, The Social Network was nominated for eight Oscars, including Best Picture, Music (Original Score), Actor in a Leading Role, Cinematography, Directing, Film Editing, Sound Mixing and Writing (Adapted Screenplay). Brunetti talked about The Social Network on KCRW's The Business podcast. In 2016, Brunetti admitted to finding "dates" for Saverin in 
Title: Atticus Ross
Content:  Atticus Matthew Cowper Ross (born 16 January 1968) is an English musician, songwriter, record producer, composer, and audio engineer. Along with Trent Reznor, he won the Academy Award for Best Original Score for The Social Network in 2010. In 2013, the pair won a Grammy Award for Best Score Soundtrack for Visual Media for their soundtrack to The Girl with the Dragon Tattoo. In 2021, alongside Jon Batiste, they won the Golden Globe and Academy Award for the soundtrack for Pixar's Soul. Ross began working with Reznor on the latter's side project Tapeworm in 2002. He later worked with Reznor's band Nine Inch Nails, first as a programmer and producer in 2005, and became the only official member of the band outside of Reznor in 2016.

Question: Who was the composer of The Social Network?
Answer: Trent Reznor.
Michael Trent Reznor.