is a 1977 Italian film directed by Alfonso Brescia and starring John Richardson. It is considered a remake of the 1965 film Planet of the Vampires. It was also released as War of the Planets (not to be confused with the 1965 Antonio Margheriti film of that name), and also as Cosmo 2000, as well as Cosmo: Planet Without a Name.
The 4 films in Alfonso Brescia’s 1978 sci-fi series are
Cosmos: War of the Planets (1978, a.k.a. Year Zero War in Space)
Battle of the Stars (1978, a.k.a. Battle in Interstellar Space), War of the Robots (1978, a.k.a. Reactor) and Star Odyssey (1979, a.k.a. Seven Gold Men in Space)