Battlefield Earth (also referred to as Battlefield Earth: A Saga of the Year 3000) is a 2000 American science fiction action film based on the 1982 novel of the same name by L. Ron Hubbard. It was directed by Roger Christian and stars John Travolta, Barry Pepper and Forest Whitaker. The film follows a rebellion against the alien Psychlos, who have ruled Earth for 1,000 years.
In 3000, Earth is a desolate wasteland. The Psychlos, a brutal race of giant humanoid aliens, have ruled the planet for 1,000 years, and use human slave labor to strip its minerals and other resources, with a special desire for gold. A few primitive hunter-gatherer tribes of humans live in freedom in remote, hidden areas, but after ten centuries of Psychlo oppression they have abandoned any hope of regaining control of their planet. Jonnie Goodboy Tyler (Barry Pepper) rejects this universal hopelessness and leaves his tribe in the Rocky Mountains on a journey of exploration with a nomad hunter named Carlo (Kim Coates) both are captured by a Psychlo raiding party and transported to a slave camp in the ruins of Denver, Colorado, the Psychlos' principal base of operations. A massive dome over the base protects the Psychlos from Earth's atmosphere, which is toxic to them.