Zeta One, also known as The Love Slaves, Alien Women and The Love Factor, is a 1970 British comedy science fiction film directed by Michael Cort and starring James Robertson Justice, Charles Hawtrey and Dawn Addams. It was written by Cort and Alistair McKenzie, based on a comic strip short story in the magazine Zeta, and was produced by George Maynard and Tony Tenser for Tigon Films.