Question: Christian Gertartsreiter, the subject of the film, Clark Rockefeller was how old when he moved to the United States?
Context: Doug Clark and the Hot Nuts, also known as Doug Clark and his Hot Nuts, The Hot Nuts and, since the death of Doug Clark in 2002, Doug Clark's Hot Nuts, is a rhythm and blues, rock and novelty band that has played party and club dates for more than fifty years.  Starting in Chapel Hill, North Carolina, they became famous on the college circuit in the southeastern United States in the early 1960s for their "risqué" song lyrics and jokes, and for allegedly performing in various states of undress.  Their signature song was "Hot Nuts".  Other songs that they were known by included: "My Ding-a-Ling", "Big Jugs" (based on "Big Bad John"), "He's Got the Whole World by the Balls", "Baby Let Me Bang Your Box", "The Bearded Clam (is a delicacy that won't be found in the deep blue sea)", "Gay Caballero" and "Two Old Maids".  It has been said that the Hot Nuts were the inspiration for the Otis Day and the Knights group in the movie "Animal House".  Their first album had a picture of the band on the cover, with Doug Clark "flipping the bird" to the audience.  All of the Hot Nuts albums were on the "Gross" label, a subsidiary of Jubilee Records created solely for the band.  Even though Jubilee published a line of "party" records with "risqué" material, the Jubilee name did not appear anywhere on the Gross albums.  Doug Clark and the Hot Nuts influenced contemporary artists such as Too Short, Ol' Dirty Bastard and Toy Tiger. Blood Will Out: The True Story of a Murder, a Mystery, and a Masquerade is a 2014 memoir by Walter Kirn.  It describes his experiences being a close friend to a man he knew as Clark Rockefeller, who claimed to be the scion of the notable Rockefeller family in the US.  In reality, Clark Rockefeller was an alias and he was really Christian Gerhartsreiter, a German immigrant to the United States who had been working as a con man for over 20 years, and who was soon to be convicted of murder. The Alexander Clark House is an historic house located in Muscatine, Iowa, United States.  The house is associated with Alexander Clark (1826–1891), an African American civil rights pioneer and US Minister to Liberia.  Clark was a 19th-century abolitionist who made his home in Muscatine for most of his adult life.  He fought and won for the integration of public schools in Iowa when his daughter was forbidden to attend her neighborhood school.  The case went to the Iowa Supreme Court, which resulted in the integration of all schools in the state.  He was an associate of Frederick Douglass, helped to establish Iowa’s only Colored regiment during the American Civil War, and the African Methodist Episcopal Church in Muscatine.  Clark was named the Minister to Liberia in 1890 by President Benjamin Harrison, where he died a year later.  The house was built in 1879 after a fire destroyed Clark’s previous house.  It was moved 200 ft from its original location in 1975, and it was listed on the National Register of Historic Places in 1976.  The house was included as a contributing property in the West Hill Historic District in 2008. John Davison "Jay" Rockefeller IV (born June 18, 1937) served as a United States Senator from West Virginia from 1985 to 2015.  He was first elected to the Senate in 1984, while in office as Governor of West Virginia, a position he held from 1977 to 1985.  Rockefeller moved to Emmons, West Virginia to serve as a VISTA worker in 1964, and was first elected to public office in the state, as a member of the House of Delegates, in 1966.  Rockefeller was later elected West Virginia Secretary of State in 1968 and was president of West Virginia Wesleyan College from 1973 to 1975.  He became the state's senior senator when the long serving Sen. Robert Byrd died in June 2010. Maurice B. Clark (1827–1901) was a partner in a produce business with John D. Rockefeller, Sr, along with Clark's two brothers, James and Richard.  Clark was from Malmesbury, England and moved to the United States in 1847.  He studied with Rockefeller at Folsom's Commercial College in Ohio.  During the American Civil War (1863), the two partners went into the oil business.  Eventually, Rockefeller bought Clark's (and his brothers') share of the company at auction for $72,500. Who Is Clark Rockefeller?  is a 2010 American police procedural television film directed by Mikael Salomon and written and co-produced by Edithe Swensen.  It stars Eric McCormack as Christian Gerhartsreiter/Clark Rockefeller and Sherry Stringfield as Sandra Boss.  The film is based on the life of Christian Gerhartsreiter, a German con artist who for years impersonated many people, at one point claiming to be part of the Rockefeller family going by the faux name "Clark Rockefeller", and kidnapping his daughter.  Filming took place in Toronto in October 2009 and was released on March 13, 2010 on the Lifetime network to mixed reviews. Alvan Clark (March 8, 1804 – August 19, 1887), born in Ashfield, Massachusetts, the descendant of a Cape Cod whaling family of English ancestry, was an American astronomer and telescope maker.  He was a portrait painter and engraver (c.1830s-1850s), and at the age of 40 became involved in telescope making.  Using glass blanks made by Chance Brothers of Birmingham and Feil-Mantois of Paris, his firm "Alvan Clark & Sons" ground lenses for refracting telescopes, including the largest in the world at the time: the 18.5 in at Dearborn Observatory at the Old University of Chicago (the lens was originally intended for Ole Miss), the two 26 in telescopes at the United States Naval Observatory and McCormick Observatory, the 30 in at Pulkovo Observatory (destroyed in the Siege of Leningrad; only the lens survives), the 36 in telescope at Lick Observatory (still third-largest) and later the 40 in at Yerkes Observatory, which remains the largest successful refracting telescope in the world.  One of Clark's sons, Alvan Graham Clark, discovered the dim companion of Sirius.  His other son was George Bassett Clark; both sons were partners in the firm. The Sapporo Independent Christian Church (Japanese: 札幌独立キリスト教会 , Hepburn: Sapporo Dokuritsu Kirisuto Kyōkai , or Sapporo Christian Church) is a church located in Sapporo, Japan.  It was founded in 1881 by students of William S. Clark at the Sapporo Agricultural College.  These students became known as the "Sapporo band" of Christians.  Although Clark had returned to the United States by the time the church was founded, he supported it financially and corresponded with its members through letters.  Members of the church include Uchimura Kanzō, who went on to found the non-church movement, and Nitobe Inazō, who became president of the Tokyo Women's Christian College, an under-secretary at the League of Nations, and was the author of "". Christian Karl Gerhartsreiter (born February 21, 1961) is a convicted murderer and impostor born in Germany who is currently serving a prison sentence in the United States.  In his late teens, Gerhartsreiter moved to the US where he lived under a succession of aliases while variously claiming to be an actor, director, art collector, a physicist, a ship's captain, a negotiator of international debt agreements, and an English aristocrat. Mary Todhunter Clark Rockefeller (June 17, 1907 – April 21, 1999) was the first wife of Nelson Aldrich Rockefeller, a Governor of New York.  She served as the First Lady of New York from 1959 until the Rockefellers' divorce in March 1962.  After their divorce, Nelson Rockefeller served as the 41st Vice President of the United States.
Answer: In his late teens