Battle Beyond the Stars

Battle Beyond the Stars is an American 1980 science fiction film directed by Jimmy T. Murakami and produced by Roger Corman. The film, intended as a Magnificent Seven in outer space, is based on The Magnificent Seven in which Robert Vaughn also appeared, the Western remake of Akira Kurosawas film Seven Samurai. The screenplay was written by John Sayles, the score was composed by James Horner, and the special effects were directed by James Cameron.

The farmers of the peaceful planet Akir are threatened by the space tyrant Sador John Saxon and his army of mutants, the Malmori. Sadors huge ship carries a weapon called a Stellar Converter, which turns planets into small stars. He threatens to use the Converter unless the planet submits to him when he returns in several days. Zed Jeff Corey, the last Akira warrior, is old and nearly blind. He suggests they hire mercenaries to protect the planet. Lacking valuable resources, they can only offer food and shelter in payment. Unable to go himself, Zed offers his ship, which has an artificial intelligence navigation and tactical computer named Nell, for the job if they can find a pilot. The ship is fast and wellarmed but cannot defeat Sador alone. Shad Richard Thomas, a young man who has piloted the ship and is well known to Nell, volunteers for the recruiting mission.Shads first stop is the Hephaestus space station, which repairs androids. Expecting to find weapons, Shad instead finds only two humans among the androids Doctor Hephaestus Sam Jaffe, kept on life support, and his beautiful daughter Nanelia Darlanne Fluegel. The doctor attempts to force Shad to mate with his daughter. Shad doesnt want to abandon his people, and escapes, with Nanelia following in her own ship. Although she has no weapons, her highly advanced computer systems might be useful. The two split up to look for more mercenaries. ........

Source: Wikipedia