"Invasion of Astro-Monster" is a Japanese science fiction movie that was released in 1965. The film is part of the Godzilla franchise and follows the story of two astronauts who travel to a distant planet called Planet X, where they discover that the planet is being attacked by a monster called King Ghidorah. The aliens of Planet X offer to lend Earth Godzilla and Rodan to help defeat King Ghidorah, but their motives may not be entirely pure.

The movie was directed by Ishirō Honda and features the iconic Godzilla suit design by Eiji Tsuburaya. The film has become known for its campy special effects, including the infamous "Monster Zero" dance performed by the aliens of Planet X. The movie also features a memorable score by Akira Ifukube and a classic kaiju battle between Godzilla, Rodan, and King Ghidorah.

Despite mixed reviews from critics, "Invasion of Astro-Monster" has become a fan favorite and a classic of the Godzilla franchise. The film's blend of cheesy special effects, kaiju battles, and sci-fi action has helped it stand the test of time and continue to attract new fans. The movie is also notable for its introduction of the character of King Ghidorah, who has become one of Godzilla's most iconic foes.

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