The Warning from Space (宇宙人東京に現わる,   Uchūjin Tokyo ni arawaru?, lit. Spacemen Appear in Tokyo) is a 1956 tokusatsu kaiju film created by Daiei. It was released to Japanese theaters on January 27, 1956.


A small ship travels to a rotating space station. Aboard the station, a group of starfish-like beings discuss how to warn humans of an impending disaster, deciding on contacting Japanese scientist Dr. Kumara. Meanwhile, flying saucers are spotted over the skies of Tokyo, baffling scientists. A journalist tries to get a statement from Dr. Kumara about the sightings, but Kumara replies that there is not enough evidence to formulate a hypothesis. At an observatory, Professor Isobe spots an object in his telescope apparently releasing smaller objects.

Isobe discusses his findings with Kumara and a physician, Dr. Matsuda, who believes they should get photographs via a rocket. The photographs they retrieve, however, turn out to be unclear, though they deduce the object has a high energy output. In the meantime, the extraterrestrials have been unsuccessfully attempting to contact humans. They begin appearing in lakes and rivers, frightening local fishermen and sailors. One of the aliens manages to secure a photo of Hikari Aozora, a famous Japanese entertainer. Their plan is for one of the aliens to mutate into the form of Aozora. Back aboard the space station, one of the Pairan leaders, Ginko, volunteers herself. Her starfish form is slowly mutated into a human form.

On Earth, Toru, Isobe's son, discovers the disguised alien floating in the water. After her rescue, she exhibits superhuman characteristics such as jumping ten feet and materializing in different places without walking. Soon, she disrupts Dr. Matsuda's work on a nuclear device, explaining she understands the complex equations he was writing and warning against the effects of a device, leading him to believe she is not human. Shortly afterwards, as the team of scientists discuss her abnormal traits, the camouflaged Ginko appears and reveals her true identity, explaining she is from Paira, a world on the same orbit as Earth but on the opposite side of the Sun. She then continues to reveal her mission, to warn Earth of an imminent collision of a rogue planet, which is dubbed "Planet R" by the media. They appeal to the World Congress about the situation, but are swiftly rejected. Only after they show Planet R and its rapid acceleration in the telescope does the World Congress launch its nuclear weapons, which ineffectively explode on its surface.

In the meantime, a group of spies have abducted Matsuda and are attempting to steal his formula to the nuclear device the disguised Pairan warned him about. Matsuda does not comply and is eventually tied to a chair in a remote building. As the Earth's atmosphere heats up due to the approaching world, Ginko again arrives to learn why Planet R is not yet destroyed. They locate Matsuda through Pairan technology and gather the formula for the device. The scientists then all watch as the nuclear device is shot from the space station and destroys Planet R, cooling the atmosphere and removing the threat. Ginko then changes back to her original form aboard the space station.


Staff role on the left, staff member's name on the right.

  • Directed by Koji Shima
  • Written by Hideo Oguni, Jay Cipes, and Edward Palmer
  • Produced by Masaichi Nagata
  • Music by Seitaro Omori
  • Cinematography by Kimio Watanabe
  • Edited by Toyo Suzuki
  • Special Effects by Kenmei Yuasa


Actor's name on the left, character played on the right.

  • Keizô Kawasaki as Dr. Toru Itsobe
  • Toyomi Karita as Ginko
  • Bin Yagisawa as Pairan No. 2
  • Shôzô Nanbu as Elderly Dr. Toru Itsobe
  • Bontarô Miake as Dr. Kamura
  • Mieko Nagai as Taeko Kamura
  • Kiyoko Hirai as Mrs. Matsuda
  • Isao Yamagata as Dr. Matsuda
  • Gai Harada as ???
  • Yûzô Hayakawa as Policeman
  • Kanji Kawahara as Dr. Takashima
  • Sachiko Meguro as Mrs. Tokuko Isobe
  • Toshiyuki Obara as News Reporter Hideno
  • Fumiko Okamura as Madam Ohana
  • Shiko Saito as Mystery Man
  • Koh Sugita as News Reporter
  • Tetsuya Watanabe as Sankichi


Weapons, Vehicles, and Races


Main article: Warning from Space/Gallery.


Main article: Warning from Space (Soundtrack).

Alternate Titles

  • Spacemen Appear in Tokyo (宇宙人東京に現わる; Japan)
  • Assault to the Earth(Asalto a la Tierra; Spain)
  • The Mysterious Sattelite (Le Satellite Mystérieux; France)
  • The Cosmic Man Appears in Tokyo (United States)
  • Unknown Satellite Over Tokyo (United States)

Theatrical Releases

US Release

Warning from Space wasn't released on Theaters in the US, but rather Television in the US. Also, in the US version was edited and adding more scenes into it.

Differences between the JP and US version

  • The Daiei logo is replaced with the American International Pictures Television logo.
  • In the JP version, the starfish-like beings do not speak like a human at all, and Japanese text is in it showing what they are saying, unless they are changed into a human, in the American version, the starfish-like beings speak like a normal human, even without their human form.
    • This edit in this case also removed the Japanese text as well on those scenes.
  • Added a scene in the American version after the opening credits and before the beginning scene, which shows the starfish-like beings talking to each other about what is happening.
  • Added a scene in the American version showing Ginko transforming back to her starfish form between the ending and the ending card.
    • All these edits makes the American version One hour and 28 minutes long, which is 3 minutes longer than the JP version which is One hour and 25 minutes long.

Video Releases

Alpha Video (2003)[1]

  • Released: October 7, 2003
  • Region: Region 1
  • Language: English
  • Format: Multiple Formats, Color, NTSC
  • Other Details: 1.33:1 aspect ratio, 87 minutes run time, 1 disc, American version

Miracle Pictures (2005)[2]

  • Released: May 5, 2005
  • Region: Region 0
  • Format: NTSC
  • Other Details: 88 minutes run time

NetFilmMusic.com (2009)[3]

  • Released: March 12, 2009
  • Region: Region 0
  • Format: NTSC
  • Other Details: 88 minutes run time

AFA Entertainment (2010)[4]

  • Released: July 19, 2010
  • Region: Region 0
  • Format: Multiple Formats, Dolby, Full Screen, NTSC
  • Other Details: 88 minutes run time, 1 disc

Kadokawa (2012)[5]

  • Released: October 26, 2012
  • Region: Region 2
  • Language: Japanese
  • Format: Color, Dolby
  • Other Details: 1.33:1 aspect ratio, 87 minutes run time, 1 disc




Film media
Godzilla films
King Kong films
Mothra films
Gamera films
Other films
Cancelled or scrapped films