Avatar is a 2009 science fiction film written and directed by James Cameron, and starring Sam Worthington, Zoe Saldaña, Sigourney Weaver and Stephen Lang. It was produced and distributed by 20th Century Fox. Avatar (2009 film) begins in the year 2154 and focuses on Pandora, an inhabited Earth-sized moon of Polyphemus, one of the three fictional gas giants orbiting Alpha Centauri A. Humans are engaged in mining Pandora's reserves of a precious mineral, while the na'vi, the sapient race of humanoids indigenous to the moon, resist the colonists' expansion, which threatens the continued existence of the na'vi and the destruction of the Pandoran ecosystem. The film's title refers to the remotely controlled, genetically engineered human-na'vi bodies used by the film's human characters to interact with the natives.
Composer James Horner scored the film, his third collaboration with Cameron after Aliens and Titanic. Horner recorded parts of the score with a small chorus singing in the alien language na'vi in March 2008. He has also worked with Wanda Bryant, an ethnomusicologist, to create a music culture for the alien race. The first scoring sessions were planned to take place in Spring 2009. British singer Leona Lewis was chosen to sing the theme song for the film, called "I See You". An accompanying music video, directed by Jake Nava, premiered December 15, 2009 on MySpace.
Avatar premiered in London on December 10, 2009, and was released theatrically worldwide from December 16 – 18. The film was originally set for release on May 22, 2009 during filming, but was pushed back to allow more post-production time, and to also give more time for theatres worldwide to install 3-D projectors.
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