Star Trek is a 2009 science fiction film directed by J. J. Abrams, written by Roberto Orci and Alex Kurtzman, and distributed by Paramount Pictures. It is the eleventh film based on the Star Trek franchise and features the main characters of the original Star Trek television series, who are portrayed by a new cast. The film follows James T. Kirk (Chris Pine) and Spock (Zachary Quinto) before they unite aboard the USS Enterprise to combat Nero (Eric Bana), a Romulan from their future who threatens the United Federation of Planets. The story establishes an alternate reality through time-travel by both Nero and the original Spock (Leonard Nimoy), freeing the film and the franchise from established continuity constraints.

Development of the film began in 2005. The production's aim was to be faithful to the Star Trek canon, modifying continuity with the time-travel storyline, and modernizing the production design of the original show. Filming took place from November 2007 to March 2008 under intense secrecy. Midway through the shoot, Paramount chose to delay the release date from December 25, 2008 to May 2009, believing the film could reach a wider audience.

Star Trek has earned high critical praise, gaining a 94% on Rotten Tomatoes. It is the thirteenth-highest-grossing film of 2009 — seventh-highest within North America — and has become the highest-grossing film in the Star Trek series and is credited by the media as a reboot of the series. It was nominated for four Academy Awards at the 2010 Oscars.