Question: An official ambassador of the United Dance Organisation, this actor made his film debut in Street Dance 3D.

Context paragraphs:
United States Ambassador to Somalia: The United States Ambassador to Somalia is the most senior diplomatic representative of the United States federal government assigned to Somalia.  The U.S. maintains a non-resident diplomatic mission in Nairobi for Somalia and its constituent autonomous regions.  In January 2013, a senior American government official indicated that the United States could eventually reopen its embassy in Mogadishu, which had closed in the early 1990s.  In June 2014, the U.S. State Department also announced that it would soon name a new ambassador to Somalia.  In February 2015, the U.S. government nominated its first official ambassador since 1991.

George Sampson: George William Sampson (born 29 June 1993) is an English street dancer, presenter, dancer, singer, actor.  He won the second series of "Britain's Got Talent" on 31 May 2008 at the age of 14.  He is an official ambassador of the United Dance Organisation.

World Irish Dance Association: The World Irish Dance Association (WIDA) is an Irish dance organisation founded in 2004.  It is based primarily in Europe and the United Kingdom, and offers "open platform" competitions that are open to competitors from all Irish dance organisations.

Lizzie Gough: Elizabeth Anne Gough (born 30 September 1984) is a British dancer, television judge, and dance presenter who came in third during the first series of "So You Think You Can Dance".  In 2010, she made her first appearance as a judge for the BBC / CBBC television series "Alesha's Street Dance Stars".  Gough trained in dance at Fitzell Roberts School of Dance in Southampton, and both dance and musical theatre at Laine Theatre Arts, a performing arts college in Epsom, Surrey.

StreetDance 3D: StreetDance 3D (also called StreetDance in the non-3D version) is a 2010 British 3D dance drama film which was released on 21 May 2010.  The film was released in RealD 3D, XpanD 3D, and Dolby 3D with Max Giwa and Dania Pasquini directing it. " Britain's Got Talent" stars George Sampson, Diversity and Flawless made their debut appearances to the big screen.  The soundtrack to the film was written and performed by alternative acts N-Dubz, Tinie Tempah, Lightbulb Thieves, and Chipmunk.  The film is a production of Vertigo Films in association with BBC Films.  N-Dubz composed the official soundtrack.  The song "We Dance On", featuring Bodyrox, was sent to music stations on 22 April.  On 28 May 2012, Phase 4 Films has acquired the US rights for the film, along with its sequel, "StreetDance 2".  "Streetdance 2" was released on 30 March 2012.

National Dance Week: National Dance Week (NDW) is an annual event in the United States sponsored by the United Dance Merchants of America to increase public awareness and appreciation of various forms of dance.  The event is coordinated by an organization under the same name headquartered in Pittsburgh, PA which operates under the sponsorship of the UDMA and currently seeks for the 501(c)(3) nonprofit organization status

United Dance Organisation: Founded in 2002 by Simon Dibley (CEO).  United Dance Organisation (UDO) is now the largest street dance organisation in the world with over 75,000 members across 30 countries including Africa, Australia, Dubai, Germany, Japan and the Netherlands.

Hip-hop dance: Hip-hop dance refers to street dance styles primarily performed to hip-hop music or that have evolved as part of hip-hop culture.  It includes a wide range of styles primarily breaking which was created in the 1970s and made popular by dance crews in the United States.  The television show "Soul Train" and the 1980s films "Breakin'", "Beat Street", and "Wild Style" showcased these crews and dance styles in their early stages; therefore, giving hip-hop mainstream exposure.  The dance industry responded with a commercial, studio-based version of hip-hop—sometimes called "new style"—and a hip-hop influenced style of jazz dance called "jazz-funk".  Classically trained dancers developed these studio styles in order to choreograph from the hip-hop dances that were performed on the street.  Because of this development, hip-hop dance is practiced in both dance studios and outdoor spaces.

Flawless (dance troupe): Flawless are an English street dance troupe based in the UK who competed on the third series of "Britain's Got Talent" in 2009.  Flawless made the final of the competition, appearing alongside fellow street dance troupe Diversity.

The Lockers: The Lockers (originally named The Campbell Lockers) were a dance group formed by Toni Basil and Don "Campbellock" Campbell in 1971.  Active throughout the 1970s, they were pioneers of street dance.  Don Campbell is the founder of the locking dance style, and originally, Locking was called The Campbellock - a style that was based on the dance and song that Don Campbell created.  Toni Basil met Campbell at a club in 1971 and together they formed The Lockers as a dance group.  Toni Basil also served as The Lockers' manager, and was responsible for staging the act.  All the dancers contributed steps and choreography with their unique and individual styles.  By 1975 they were "Dancing their way to stardom" on their own.  Individual members' contributions (as soloist performers) to the dance style and group image coupled with their unique presentation in staging and concept broke down many barriers.  It has been said on the reality dance competition "So You Think You Can Dance" that "The Lockers' emergence on the dance scene changed the face of dance not only for street dancers but for dance in general and has made street dance a true American art form."

Supporting paragraphs: StreetDance 3D George Sampson
Answer: George Sampson