Eiji Tsuburaya
is a 1963 Japanese tokusatsu science fiction film produced and distributed by Toho. It is based on "The Undersea Warship: A Fantastic Tale of Island Adventure" by Shunrō Oshikawa and "The Undersea Kingdom" by Shigeru Komatsuzaki. The film is directed by Ishirō Honda, with special effects by Eiji Tsuburaya and stars Jun Tazaki, Tadao Takashima, Yōko Fujiyama, Yū Fujiki, and Ken Uehara.