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 by Scientology founder L. Ron Hubbard. Synopsis: The film follows a rebellion against the alien Psychlos, a brutal race of humanoid aliens who have ruled Earth for 1,000 years.

References:
https://en.wikipedia.org/wiki/Battlefield_Earth_(film)