Circus of Fear is a 1966 English-language Mystery Thriller movie written by Harry Alan Towers and directed by John Llewellyn Moxey and produced by Harry Alan Towers under the banner of Circus Films in collaboration with Proudweeks. Circus of fear stars Christopher Lee, Leo Genn, Suzy Kendall, Anthony Newlands, Heinz Drache, Eddi Arent and Fred Wood. The motion picture is based on Again the Three Just Men by Edgar Wallace. The music was composed by Johnny Douglas. Cinematography was done by Ernest Steward and editing by John Trumper. The film has a running time of 90 minutes. It was released on 29th April 1966. Distribution rights for the film were acquired by Warner-Path Distributors.