Invasion of Astro-Monster

is a 1965 kaiju film directed by Ishirō Honda, with special effects by Eiji Tsuburaya. It is the sixth film in the Godzilla franchise and Shōwa period. The film was a Japanese-American co-production; it was the second collaboration between Toho Co., Ltd. and UPA. The film stars Akira Takarada, Nick Adams, Kumi Mizuno, Akira Kubo, and Yoshio Tsuchiya, with Haruo Nakajima as Godzilla, Masaki Shinohara as Rodan, and Shoichi Hirose as King Ghidorah. In the film, aliens plead with humanity to borrow Godzilla and Rodan to defeat King Ghidorah, only to betray the humans and unleash the monsters on the Earth. Invasion of Astro-Monster was theatrically released in Japan on December 19, 1965. It was followed by a theatrical release in the United States on July 29, 1970, by Maron Films as Monster Zero, on a double bill with The War of the Gargantuas. The film was followed by the seventh film in the Godzilla franchise, Ebirah, Horror of the Deep, released on December 17, 1966. Plot In the year 196X, two astronauts, Fuji and Glenn, are sent to investigate the surface of the mysterious "Planet X". There they encounter advanced and seemingly benevolent human-like beings called the Xiliens and their leader the Controller. The aliens usher the astronauts into their underground base, and moments later the surface is attacked by a creature that the Xiliens call "Monster Zero", but which the astronauts recognize as King Ghidorah, a planet-destroying monster that had attacked Earth once before. The monster eventually leaves, but the Controller states that King Ghidorah has been attacking repeatedly, forcing them to live underground in constant fear. He requests to borrow the Earth monsters Godzilla and Rodan to act as protectors to fight it once more (since 1964), in return for the cure for cancer (the English dub says that the formula can cure any disease). The astronauts return to Earth and deliver the message.