The War of the Gargantuas (フランケンシュタインの怪獣 サンダ対ガイラ, Furankenshutain no Kaijū: Sanda tai Gaira, lit. 'Frankenstein's Monsters: Sanda vs. Gaira') is a 1966 kaiju film directed by Ishirō Honda, co-written by Honda and Takeshi Kimura and produced by Tomoyuki Tanaka and Kenichiro Tsunoda with special effects by Eiji Tsuburaya. A sequel to Frankenstein Conquers the World, the film was a Japanese-American co-production; it was the third and final collaboration between Toho[1] and Henry G. Saperstein.[6][7] The film stars Russ Tamblyn, Kumi Mizuno and Kenji Sahara, with Yû Sekida as Sanda and Haruo Nakajima as Gaira. In the film, scientists investigate the sudden appearance of two giant hairy humanoid monsters that culminates in a battle in Tokyo. The War of the Gargantuas was theatrically released in Japan on July 31, 1966, followed by a theatrical release in the United States on July 29, 1970 on a double feature with Monster Zero. Since its release, the film has been regarded as a cult classic, drawing admiration from artists such as Brad Pitt, Quentin Tarantino, Guillermo del Toro and Tim Burton.[8]