monster "camera." The Japanese footage was dubbed into English by Titra Studios, which featured the voices of Peter Fernandez, Corinne Orr, Jack Curtis, and Bernard Grant. Tadashi Yamanouchi's score was left intact while additional music recycled from film libraries was added to supplement the new footage. The song "Gammera" was written and recorded for the film by Wes Farrell and Artie Butler as "The Moons." Months after its release, a bootlegged instrumental version of the song was released in the U.K. as "Shing-A-Ling At the Go-Go." To impress exhibitors, World Enterprises claimed to have spent a million dollars in advertising the film. The film was released theatrically in December 1966 as Gammera the Invincible. In 1969, Harris Associates, Inc. re-released the film as a double feature with the Italian swashbuckler Mario Bava film Knives of the Avenger (1966); the pairing was advertised as "The Biggest... Most Frightening Science-Fiction Action-Show of the Century!". In 1985, the Japanese version and four other Gamera titles were acquired by Sandy Frank Film Syndication. While English dubs were recorded for the Japanese cuts of the other films by Hong Kong-based studios for international releases, the Japanese version of Gamera, the Giant Monster had no existing dub and an entirely new English dub was commissioned and recorded at Anvil Studios in England, which featured the voices of Garrick Hagon and Liza Ross. This English dubbed version, simply titled Gamera, as well as the others released by Sandy Frank, were featured on Mystery Science Theater 3000. Release Theatrical and television Gamera, the Giant Monster was released in Japan on November 27, 1965. The film was a bigger hit than the studio expected, which led to a higher budget for the second film, Gamera vs. Barugon. A heavily altered version of the film was theatrically released in the United States on December 15, 1966 as Gammera the Invincible by Harris Associates, Inc. and World Enterprises Corporation. The American version runs at 86 minutes. At times, Gammera the Invincible was double-billed with Knives of the Avenger or The Road to Fort Alamo. After acquiring World Enterprises and their catalogue, National Telefilm Associates released a 16mm pan and scan version to television. Gammera the Invincible usually aired alongside the English versions of the Gamera films released by American International Television. It was this 16mm pan and scan version of the American cut that became the source for many public domain