Ishiro Honda is the Steven Spielberg of Japan in that he created a huge body of work...big, exciting, fantasy movies of such number, quality and iconic value that he stands head and shoulders above his peers.

This film is among Honda's lesser known works, and is a rarity in that there is absolutely no Kaiju in this film, not even a robot Kaiju such as seen in the better-known 'The Mysterians'. And, in terms of the fantastic cinema of Japan, this is one of the more serious science fiction creations of the period, although containing many inaccuracies that would be glaring to anyone with the slightest familiarity to the work of George Pal.

This film features creative and interesting FX that vastly outshine most of what the US was producing at this time, and might even have the most complex miniature sets and sequences of anything produced by Toho during the classic period. There are large scale space ship dogfight sequences that anticipate Star Wars, which was done 17 years later.

The plot, while not profound, is sufficiently interesting and entertaining and the actors are good enough to make this an enjoyable escapist film. Thematically, this is classic Invasion Literature, with few new wrinkles thrown in...definitely straightforward, Honda doesn't give us anything ambiguous or subversive to chew over.

Any fan of old-school scifi and Kaiju films is liable to enjoy this one very much, it's just an impressive spectacle.