Question: What is the American media company that produced The Hobbit: The Desolation of Smaug in collaboration with WingNut Films and New Line Cinema?
Context: The Lord of the Rings is a film series consisting of three high fantasy adventure films directed by Peter Jackson.  They are based on the novel "The Lord of the Rings" by J. R. R. Tolkien.  The films are subtitled "" (2001), "" (2002) and "" (2003).  They are a New Zealand-American venture produced by WingNut Films and The Saul Zaentz Company and distributed by New Line Cinema. The Hobbit: The Battle of the Five Armies is a 2014 epic high fantasy action film directed by Peter Jackson and written by Jackson, Fran Walsh, Philippa Boyens, and Guillermo del Toro.  It is the third and final installment in Peter Jackson's three-part film adaptation based on the novel "The Hobbit" by J. R. R. Tolkien, following "" (2012) and "" (2013), and together they act as a prequel to Jackson's "The Lord of the Rings" film trilogy.  It was produced by New Line Cinema, Metro-Goldwyn-Mayer and WingNut Films, and distributed by Warner Bros. Pictures.  "The Battle of the Five Armies" was released on 11 December 2014 in New Zealand, 12 December 2014 in the United Kingdom, and on 17 December 2014 in the United States.  It stars Martin Freeman, Ian McKellen, Richard Armitage, Evangeline Lilly, Lee Pace, Luke Evans, Benedict Cumberbatch, Ken Stott, and James Nesbitt.  It also features Cate Blanchett, Ian Holm, Christopher Lee, Hugo Weaving, and Orlando Bloom.  The film received mixed reviews and grossed over $956 million worldwide, making it the second highest-grossing film of 2014 and the 38th highest-grossing film of all time.  At the 87th Academy Awards, the film received a nomination for Best Sound Editing. Robert Friedman (born March 24, 1956) is a businessman in the entertainment industry.  He is the CEO of Bungalow Media + Entertainment, a private equity-backed entertainment and media company he founded in 2013.  It develops, produces and distributes content across all platforms.  Beginning his career as an account manager at Grey Advertising he then held roles at AOL Time Warner, New Line Cinema, Classic Media, and RadicalMedia.  He has produced films including , , and Under African Skies, for which he shared a Christopher Award. New Line Home Entertainment (formerly known as New Line Home Video) was the home entertainment distribution arm of New Line Cinema, founded in 1990.  According to New Line's website, "Misery" was the first New Line Home Video release. The Lord of the Rings Strategy Battle Game (abbreviated to "LotR SBG"), previously marketed as The Hobbit: An Unexpected Journey Strategy Battle Game and The Hobbit: The Desolation of Smaug Strategy Battle Game and now as The Hobbit: The Battle of Five Armies Strategy Battle Game, is a tabletop miniature wargame produced by Games Workshop.  It is based on "The Lord of the Rings" film trilogy directed by Peter Jackson, and the book that inspired it, written by J. R. R. Tolkien. WingNut Films is a New Zealand production company based in Wellington, New Zealand.  It is notable for producing and collaborates predominantly with filmmaker Peter Jackson.  WingNut films also has produced at Pinewood Studios in England. Platinum Studios, Inc. is a publicly traded media company based in the United States.  It controls a library of thousands of comic-book characters, which it seeks to adapt, produce, and license for all forms of media.  The company has released films and/or television programming with Universal Studios, Paramount Pictures, DreamWorks, MGM, Showtime, and Lions Gate.  Platinum has developed film or television with others, including The Walt Disney Company, Time-Warner’s New Line Cinema, 20th Century Fox and Sony Picture Entertainment. Metro-Goldwyn-Mayer Studios Inc. (abbreviated as MGM or M-G-M, also known as Metro-Goldwyn-Mayer Pictures, Metro-Goldwyn-Mayer or simply Metro, and for a former interval known as Metro-Goldwyn-Mayer/United Artists, or MGM/UA) is an American media company, involved primarily in the production and distribution of feature films and television programs. The Hobbit: The Desolation of Smaug is a 2013 epic high fantasy adventure film directed by Peter Jackson and produced by WingNut Films in collaboration with New Line Cinema and Metro-Goldwyn-Mayer.  It was distributed by Warner Bros.  Pictures and is the second installment in the three-part film series based on the novel "The Hobbit" by J. R. R. Tolkien.  The film was preceded by "" (2012) and followed by "" (2014); together they operate as a prequel to Jackson's "The Lord of the Rings" film trilogy. Semi-Pro is a 2008 American sports comedy film from New Line Cinema.  The film was directed by Kent Alterman and stars Will Ferrell, Woody Harrelson, André Benjamin and Maura Tierney.  The film was shot in Los Angeles near Dodger Stadium (in the gym of the Los Angeles City Fire Department Training Center), in Detroit, and in Flint, Michigan.  Released in theaters on February 29, 2008 and released on DVD and Blu-ray Disc on June 3, 2008, it was the last film from New Line Cinema before they merged with Warner Bros.
Answer: Metro-Goldwyn-Mayer Studios Inc.