Moon is a 2009 science fiction film directed by Duncan Jones (in his directorial debut), written by Nathan Parker from a story by Jones. The film follows Sam Bell (Sam Rockwell), a man who experiences a personal crisis as he nears the end of a three-year solitary stint mining helium-3 on the far side of the Moon. Kevin Spacey co-stars with a voice role, while Dominique McElligott, Kaya Scodelario, Benedict Wong, Matt Berry, and Malcolm Stewart have supporting roles.

Moon premiered at the 2009 Sundance Film Festival and was released in selected cinemas in New York and Los Angeles on 12 June 2009. The release was expanded to additional theatres in the United States on 10 July and to the United Kingdom on 17 July. A follow-up film containing an epilogue to the film's events, Mute, was released in 2018. A third installment, a graphic novel called Madi: Once Upon a Time in the Future, was released in 2020.

Moon was modestly budgeted and grossed just under $10 million worldwide, but was well received by critics. Rockwell's performance found praise. The film won numerous film critic and film festival awards and was nominated for the BAFTA Award for Best British Film, and won the Hugo Award for Best Dramatic Presentation in 2010.