In 1975, a Thongor film was planned to begin production on a $3 million adaptation in 1978, Titled Thongor in the Valley of Demons[3][4] the film was intended to be the first major release for producer Milton Subotsky's company Sword and Sorcery productions following his departure from Amicus Productions.[3] Stop-motion animator Jim Danforth had initially been considered to direct, but instead the producers hired Harley Cokeliss.[5] The effects work was to be handled by Barry Leith, best known for his work on The Wombles.[5] Subotsky had intended to have Arnold Schwarzenegger star as Thongor, but by the time Subotsky approached him Schwarzenegger had already signed a deal with Edward R. Pressman for Conan the Barbarian[3] , the project was later cancelled.
